diff --git a/blender/arm/__init__.py b/blender/arm/__init__.py
index e69de29b..eb89c678 100755
--- a/blender/arm/__init__.py
+++ b/blender/arm/__init__.py
@@ -0,0 +1,26 @@
+import importlib
+import types
+
+# This gets cleared if this package/the __init__ module is reloaded
+_module_cache: dict[str, types.ModuleType] = {}
+
+
+def reload_module(module: types.ModuleType) -> types.ModuleType:
+    """Wrapper around importlib.reload() to make sure no module is
+    reloaded twice.
+
+    Make sure to call this function in the same order in which the
+    modules are imported to make sure that the reloading respects the
+    module dependencies. Otherwise modules could depend on other modules
+    that are not yet reloaded.
+
+    If you import classes or functions from a module, make sure to
+    re-import them after the module is reloaded.
+    """
+    mod = _module_cache.get(module.__name__, None)
+
+    if mod is None:
+        mod = importlib.reload(module)
+        _module_cache[module.__name__] = mod
+
+    return mod
diff --git a/blender/arm/api.py b/blender/arm/api.py
index ed53a290..d66c9b8c 100644
--- a/blender/arm/api.py
+++ b/blender/arm/api.py
@@ -4,7 +4,14 @@ from bpy.types import Material, UILayout
 
 from arm.material.shader import ShaderContext
 
-drivers: Dict[str, Dict] = dict()
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import ShaderContext
+else:
+    drivers: Dict[str, Dict] = dict()
+
+    DO_RELOAD_MODULE = True
 
 
 def add_driver(driver_name: str,
diff --git a/blender/arm/assets.py b/blender/arm/assets.py
index b0c1bc97..1882818d 100755
--- a/blender/arm/assets.py
+++ b/blender/arm/assets.py
@@ -6,6 +6,12 @@ import bpy
 import arm.log as log
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    log = arm.reload_module(log)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 assets = []
 reserved_names = ['return.']
 khafile_params = []
diff --git a/blender/arm/exporter.py b/blender/arm/exporter.py
index 10d23e13..92d28a2a 100755
--- a/blender/arm/exporter.py
+++ b/blender/arm/exporter.py
@@ -32,7 +32,19 @@ import arm.material.mat_batch as mat_batch
 import arm.utils
 import arm.profiler
 
-import arm.log as log
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    exporter_opt = arm.reload_module(exporter_opt)
+    log = arm.reload_module(log)
+    make_renderpath = arm.reload_module(make_renderpath)
+    cycles = arm.reload_module(cycles)
+    make_material = arm.reload_module(make_material)
+    mat_batch = arm.reload_module(mat_batch)
+    arm.utils = arm.reload_module(arm.utils)
+    arm.profiler = arm.reload_module(arm.profiler)
+else:
+    DO_RELOAD_MODULE = True
+
 
 @unique
 class NodeType(Enum):
diff --git a/blender/arm/exporter_opt.py b/blender/arm/exporter_opt.py
index 60c64ae6..520a83a1 100644
--- a/blender/arm/exporter_opt.py
+++ b/blender/arm/exporter_opt.py
@@ -1,11 +1,20 @@
+"""
+Exports smaller geometry but is slower.
+To be replaced with https://github.com/zeux/meshoptimizer
+"""
+
 from mathutils import *
 import numpy as np
 
-import arm.utils
 import arm.log as log
+import arm.utils
+
+if "DO_RELOAD_MODULE" in locals():
+    log = arm.reload_module(log)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
 
-# Exports smaller geometry but is slower
-# To be replaced with https://github.com/zeux/meshoptimizer
 
 class Vertex:
     __slots__ = ("co", "normal", "uvs", "col", "loop_indices", "index", "bone_weights", "bone_indices", "bone_count", "vertex_index")
diff --git a/blender/arm/handlers.py b/blender/arm/handlers.py
index 177a907c..f77e117a 100644
--- a/blender/arm/handlers.py
+++ b/blender/arm/handlers.py
@@ -15,6 +15,18 @@ import arm.make_state as state
 import arm.props as props
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.api = arm.reload_module(arm.api)
+    live_patch = arm.reload_module(live_patch)
+    arm_nodes = arm.reload_module(arm_nodes)
+    arm.nodes_logic = arm.reload_module(arm.nodes_logic)
+    make = arm.reload_module(make)
+    state = arm.reload_module(state)
+    props = arm.reload_module(props)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 @persistent
 def on_depsgraph_update_post(self):
diff --git a/blender/arm/keymap.py b/blender/arm/keymap.py
index 77e09183..40dabd09 100644
--- a/blender/arm/keymap.py
+++ b/blender/arm/keymap.py
@@ -1,8 +1,16 @@
 import bpy
+
 import arm.props_ui as props_ui
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    props_ui = arm.reload_module(props_ui)
+else:
+    DO_RELOAD_MODULE = True
+
 arm_keymaps = []
 
+
 def register():
     wm = bpy.context.window_manager
     addon_keyconfig = wm.keyconfigs.addon
@@ -21,6 +29,7 @@ def register():
     km.keymap_items.new("tlm.clean_lightmaps", type='F7', value='PRESS')
     arm_keymaps.append(km)
 
+
 def unregister():
     wm = bpy.context.window_manager
     for km in arm_keymaps:
diff --git a/blender/arm/lib/armpack.py b/blender/arm/lib/armpack.py
index f2f5d23d..7962608f 100755
--- a/blender/arm/lib/armpack.py
+++ b/blender/arm/lib/armpack.py
@@ -20,9 +20,10 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 #
-import struct
 import io
 import numpy as np
+import struct
+
 
 def _pack_integer(obj, fp):
     if obj < 0:
diff --git a/blender/arm/lib/server.py b/blender/arm/lib/server.py
index 9774945c..21492324 100755
--- a/blender/arm/lib/server.py
+++ b/blender/arm/lib/server.py
@@ -1,7 +1,7 @@
+import atexit
 import http.server
 import socketserver
 import subprocess
-import atexit
 
 haxe_server = None
 
diff --git a/blender/arm/live_patch.py b/blender/arm/live_patch.py
index b2bf81a8..6a1c9fea 100644
--- a/blender/arm/live_patch.py
+++ b/blender/arm/live_patch.py
@@ -5,23 +5,37 @@ from typing import Any, Type
 import bpy
 
 import arm.assets
-import arm.node_utils
 from arm.exporter import ArmoryExporter
 import arm.log as log
 from arm.logicnode.arm_nodes import ArmLogicTreeNode
 import arm.make as make
 import arm.make_state as state
+import arm.node_utils
 import arm.utils
 
-# Current patch id
-patch_id = 0
+if "DO_RELOAD_MODULE" in locals():
+    arm.assets = arm.reload_module(arm.assets)
+    arm.exporter = arm.reload_module(arm.exporter)
+    from arm.exporter import ArmoryExporter
+    log = arm.reload_module(log)
+    arm.logicnode.arm_nodes = arm.reload_module(arm.logicnode.arm_nodes)
+    from arm.logicnode.arm_nodes import ArmLogicTreeNode
+    make = arm.reload_module(make)
+    state = arm.reload_module(state)
+    arm.node_utils = arm.reload_module(arm.node_utils)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+    patch_id = 0
+    """Current patch id"""
+
+    __running = False
+    """Whether live patch is currently active"""
 
 # Any object can act as a message bus owner
 msgbus_owner = object()
 
-# Whether live patch is currently active
-__running = False
-
 
 def start():
     """Start the live patch session."""
@@ -43,9 +57,10 @@ def start():
 
 def stop():
     """Stop the live patch session."""
-    global __running
+    global __running, patch_id
     if __running:
         __running = False
+        patch_id = 0
 
         log.debug("Live patch session stopped")
         bpy.msgbus.clear_by_owner(msgbus_owner)
diff --git a/blender/arm/logicnode/__init__.py b/blender/arm/logicnode/__init__.py
index 716ecd37..aaaceb5d 100644
--- a/blender/arm/logicnode/__init__.py
+++ b/blender/arm/logicnode/__init__.py
@@ -1,13 +1,29 @@
 import importlib
 import inspect
 import pkgutil
+import sys
 
+import arm
 import arm.logicnode.arm_nodes as arm_nodes
+from arm.logicnode.arm_props import *
 import arm.logicnode.arm_sockets as arm_sockets
+from arm.logicnode.replacement import NodeReplacement
+
+if "DO_RELOAD_MODULE" in locals():
+    arm_nodes = arm.reload_module(arm_nodes)
+    arm.logicnode.arm_props = arm.reload_module(arm.logicnode.arm_props)
+    from arm.logicnode.arm_props import *
+    arm_sockets = arm.reload_module(arm_sockets)
+    arm.logicnode.replacement = arm.reload_module(arm.logicnode.replacement)
+    from arm.logicnode.replacement import NodeReplacement
+
+    HAS_RELOADED = True
+else:
+    DO_RELOAD_MODULE = True
 
 
 def init_categories():
-    # Register node menu categories
+    """Register default node menu categories."""
     arm_nodes.add_category('Logic', icon='OUTLINER', section="basic",
                            description="Logic nodes are used to control execution flow using branching, loops, gates etc.")
     arm_nodes.add_category('Event', icon='INFO', section="basic")
@@ -56,8 +72,15 @@ def init_nodes():
             # The package must be loaded as well so that the modules from that package can be accessed (see the
             # pkgutil.walk_packages documentation for more information on this)
             loader.find_module(module_name).load_module(module_name)
-        else:
-            _module = importlib.import_module(module_name)
+
+        # Only look at modules in sub packages
+        elif module_name.rsplit('.', 1)[0] != __package__:
+            if 'HAS_RELOADED' not in globals():
+                _module = importlib.import_module(module_name)
+            else:
+                # Reload the module if the SDK was reloaded at least once
+                _module = importlib.reload(sys.modules[module_name])
+
             for name, obj in inspect.getmembers(_module, inspect.isclass):
                 if name == "ArmLogicTreeNode":
                     continue
diff --git a/blender/arm/logicnode/arm_nodes.py b/blender/arm/logicnode/arm_nodes.py
index 85ae3730..8ab7381e 100644
--- a/blender/arm/logicnode/arm_nodes.py
+++ b/blender/arm/logicnode/arm_nodes.py
@@ -1,5 +1,5 @@
-import itertools
 from collections import OrderedDict
+import itertools
 from typing import Any, Generator, List, Optional, Type
 from typing import OrderedDict as ODict  # Prevent naming conflicts
 
@@ -14,6 +14,15 @@ from arm.logicnode.arm_props import *
 from arm.logicnode.replacement import NodeReplacement
 import arm.node_utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.logicnode.arm_props = arm.reload_module(arm.logicnode.arm_props)
+    from arm.logicnode.arm_props import *
+    arm.logicnode.replacement = arm.reload_module(arm.logicnode.replacement)
+    from arm.logicnode.replacement import NodeReplacement
+    arm.node_utils = arm.reload_module(arm.node_utils)
+else:
+    DO_RELOAD_MODULE = True
+
 # When passed as a category to add_node(), this will use the capitalized
 # name of the package of the node as the category to make renaming
 # categories easier.
diff --git a/blender/arm/logicnode/arm_props.py b/blender/arm/logicnode/arm_props.py
index 1a32cb28..c87e7534 100644
--- a/blender/arm/logicnode/arm_props.py
+++ b/blender/arm/logicnode/arm_props.py
@@ -15,6 +15,20 @@ from typing import Any, Callable, Sequence, Union
 import bpy
 from bpy.props import *
 
+__all__ = [
+    'HaxeBoolProperty',
+    'HaxeBoolVectorProperty',
+    'HaxeCollectionProperty',
+    'HaxeEnumProperty',
+    'HaxeFloatProperty',
+    'HaxeFloatVectorProperty',
+    'HaxeIntProperty',
+    'HaxeIntVectorProperty',
+    'HaxePointerProperty',
+    'HaxeStringProperty',
+    'RemoveHaxeProperty'
+]
+
 
 def __haxe_prop(prop_type: Callable, prop_name: str, *args, **kwargs) -> Any:
     """Declares a logic node property as a property that will be
diff --git a/blender/arm/logicnode/arm_sockets.py b/blender/arm/logicnode/arm_sockets.py
index 58f2ea70..df36658e 100644
--- a/blender/arm/logicnode/arm_sockets.py
+++ b/blender/arm/logicnode/arm_sockets.py
@@ -4,6 +4,11 @@ from bpy.types import NodeSocket
 
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def _on_update_socket(self, context):
     self.node.on_socket_val_update(context, self)
diff --git a/blender/arm/logicnode/replacement.py b/blender/arm/logicnode/replacement.py
index b703d83b..d0efc6ec 100644
--- a/blender/arm/logicnode/replacement.py
+++ b/blender/arm/logicnode/replacement.py
@@ -20,6 +20,14 @@ import arm.logicnode.arm_nodes as arm_nodes
 import arm.logicnode.arm_sockets
 import arm.node_utils as node_utils
 
+if "DO_RELOAD_MODULE" in locals():
+    log = arm.reload_module(log)
+    arm_nodes = arm.reload_module(arm_nodes)
+    arm.logicnode.arm_sockets = arm.reload_module(arm.logicnode.arm_sockets)
+    node_utils = arm.reload_module(node_utils)
+else:
+    DO_RELOAD_MODULE = True
+
 # List of errors that occurred during the replacement
 # Format: (error identifier, node.bl_idname (or None), tree name, exception traceback (optional))
 replacement_errors: List[Tuple[str, Optional[str], str, Optional[str]]] = []
diff --git a/blender/arm/make.py b/blender/arm/make.py
index a4da2dbf..cc599c29 100755
--- a/blender/arm/make.py
+++ b/blender/arm/make.py
@@ -27,6 +27,23 @@ import arm.make_world as make_world
 import arm.utils
 import arm.write_data as write_data
 
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    arm.exporter = arm.reload_module(arm.exporter)
+    from arm.exporter import ArmoryExporter
+    arm.lib.make_datas = arm.reload_module(arm.lib.make_datas)
+    arm.lib.server = arm.reload_module(arm.lib.server)
+    live_patch = arm.reload_module(live_patch)
+    log = arm.reload_module(log)
+    make_logic = arm.reload_module(make_logic)
+    make_renderpath = arm.reload_module(make_renderpath)
+    state = arm.reload_module(state)
+    make_world = arm.reload_module(make_world)
+    arm.utils = arm.reload_module(arm.utils)
+    write_data = arm.reload_module(write_data)
+else:
+    DO_RELOAD_MODULE = True
+
 scripts_mtime = 0 # Monitor source changes
 profile_time = 0
 
diff --git a/blender/arm/make_logic.py b/blender/arm/make_logic.py
index 5ecf42a1..a4195bb8 100755
--- a/blender/arm/make_logic.py
+++ b/blender/arm/make_logic.py
@@ -8,6 +8,15 @@ import arm.log
 import arm.node_utils
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.exporter = arm.reload_module(arm.exporter)
+    from arm.exporter import ArmoryExporter
+    arm.log = arm.reload_module(arm.log)
+    arm.node_utils = arm.reload_module(arm.node_utils)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 parsed_nodes = []
 parsed_ids = dict() # Sharing node data
 function_nodes = dict()
diff --git a/blender/arm/make_renderpath.py b/blender/arm/make_renderpath.py
index ef296d21..7b2e0dde 100755
--- a/blender/arm/make_renderpath.py
+++ b/blender/arm/make_renderpath.py
@@ -1,9 +1,19 @@
 import bpy
+
+import arm.api
 import arm.assets as assets
-import arm.utils
 import arm.log as log
 import arm.make_state as state
-import arm.api
+import arm.utils
+
+if "DO_RELOAD_MODULE" in locals():
+    arm.api = arm.reload_module(arm.api)
+    assets = arm.reload_module(assets)
+    log = arm.reload_module(log)
+    state = arm.reload_module(state)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
 
 callback = None
 
diff --git a/blender/arm/make_state.py b/blender/arm/make_state.py
index b83b8726..bf6c9f97 100644
--- a/blender/arm/make_state.py
+++ b/blender/arm/make_state.py
@@ -1,15 +1,18 @@
-redraw_ui = False
-target = 'krom'
-last_target = 'krom'
-export_gapi = ''
-last_resx = 0
-last_resy = 0
-last_scene = ''
-last_world_defs = ''
-proc_play = None
-proc_build = None
-proc_publish_build = None
-mod_scripts = []
-is_export = False
-is_play = False
-is_publish = False
+if "DO_RELOAD_MODULE" not in locals():
+    DO_RELOAD_MODULE = True
+
+    redraw_ui = False
+    target = 'krom'
+    last_target = 'krom'
+    export_gapi = ''
+    last_resx = 0
+    last_resy = 0
+    last_scene = ''
+    last_world_defs = ''
+    proc_play = None
+    proc_build = None
+    proc_publish_build = None
+    mod_scripts = []
+    is_export = False
+    is_play = False
+    is_publish = False
diff --git a/blender/arm/make_world.py b/blender/arm/make_world.py
index 71dac33b..3c176d06 100755
--- a/blender/arm/make_world.py
+++ b/blender/arm/make_world.py
@@ -12,6 +12,21 @@ import arm.node_utils as node_utils
 import arm.utils
 import arm.write_probes as write_probes
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.assets = arm.reload_module(arm.assets)
+    arm.log = arm.reload_module(arm.log)
+    arm.material = arm.reload_module(arm.material)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState, ParserContext
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import ShaderContext, Shader
+    cycles = arm.reload_module(cycles)
+    node_utils = arm.reload_module(node_utils)
+    arm.utils = arm.reload_module(arm.utils)
+    write_probes = arm.reload_module(write_probes)
+else:
+    DO_RELOAD_MODULE = True
+
 callback = None
 shader_datas = []
 
diff --git a/blender/arm/material/__init__.py b/blender/arm/material/__init__.py
index e69de29b..661b7767 100755
--- a/blender/arm/material/__init__.py
+++ b/blender/arm/material/__init__.py
@@ -0,0 +1 @@
+import arm
diff --git a/blender/arm/material/arm_nodes/custom_particle_node.py b/blender/arm/material/arm_nodes/custom_particle_node.py
index 8c9d9f63..fbb28e78 100644
--- a/blender/arm/material/arm_nodes/custom_particle_node.py
+++ b/blender/arm/material/arm_nodes/custom_particle_node.py
@@ -5,6 +5,17 @@ from arm.material.arm_nodes.arm_nodes import add_node
 from arm.material.shader import Shader
 from arm.material.cycles import *
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    arm.material.arm_nodes.arm_nodes = arm.reload_module(arm.material.arm_nodes.arm_nodes)
+    from arm.material.arm_nodes.arm_nodes import add_node
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader
+    arm.material.cycles = arm.reload_module(arm.material.cycles)
+    from arm.material.cycles import *
+else:
+    DO_RELOAD_MODULE = True
+
 
 class CustomParticleNode(Node):
     """Input data for paricles."""
@@ -174,7 +185,7 @@ class CustomParticleNode(Node):
 
             if self.posZ:
                 vertshdr.write(f'spos.z += {pos}.z;')
-                
+
         vertshdr.write('wposition = vec4(W * spos).xyz;')
 
 
diff --git a/blender/arm/material/arm_nodes/shader_data_node.py b/blender/arm/material/arm_nodes/shader_data_node.py
index 8ab0aaa6..ec7d2077 100644
--- a/blender/arm/material/arm_nodes/shader_data_node.py
+++ b/blender/arm/material/arm_nodes/shader_data_node.py
@@ -4,6 +4,15 @@ from bpy.types import Node
 from arm.material.arm_nodes.arm_nodes import add_node
 from arm.material.shader import Shader
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    arm.material.arm_nodes.arm_nodes = arm.reload_module(arm.material.arm_nodes.arm_nodes)
+    from arm.material.arm_nodes.arm_nodes import add_node
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader
+else:
+    DO_RELOAD_MODULE = True
+
 
 class ShaderDataNode(Node):
     """Allows access to shader data such as uniforms and inputs."""
diff --git a/blender/arm/material/cycles.py b/blender/arm/material/cycles.py
index 625c24c2..5e20f4dd 100644
--- a/blender/arm/material/cycles.py
+++ b/blender/arm/material/cycles.py
@@ -30,6 +30,23 @@ from arm.material.parser_state import ParserState, ParserContext
 from arm.material.shader import Shader, ShaderContext, floatstr, vec3str
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.assets = arm.reload_module(arm.assets)
+    log = arm.reload_module(log)
+    arm.make_state = arm.reload_module(arm.make_state)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.cycles_nodes = arm.reload_module(arm.material.cycles_nodes)
+    from arm.material.cycles_nodes import *
+    mat_state = arm.reload_module(mat_state)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState, ParserContext
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader, ShaderContext, floatstr, vec3str
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 # Particle info export
 particle_info: Dict[str, bool] = {}
 
diff --git a/blender/arm/material/cycles_nodes/nodes_color.py b/blender/arm/material/cycles_nodes/nodes_color.py
index 1b7dff08..08a181f3 100644
--- a/blender/arm/material/cycles_nodes/nodes_color.py
+++ b/blender/arm/material/cycles_nodes/nodes_color.py
@@ -6,6 +6,18 @@ import arm.material.cycles_functions as c_functions
 from arm.material.parser_state import ParserState
 from arm.material.shader import floatstr, vec3str
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    log = arm.reload_module(log)
+    c = arm.reload_module(c)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import floatstr, vec3str
+else:
+    DO_RELOAD_MODULE = True
+
 
 def parse_brightcontrast(node: bpy.types.ShaderNodeBrightContrast, out_socket: bpy.types.NodeSocket, state: ParserState) -> vec3str:
     out_col = c.parse_vector_input(node.inputs[0])
diff --git a/blender/arm/material/cycles_nodes/nodes_converter.py b/blender/arm/material/cycles_nodes/nodes_converter.py
index 813a1d87..8a241b2d 100644
--- a/blender/arm/material/cycles_nodes/nodes_converter.py
+++ b/blender/arm/material/cycles_nodes/nodes_converter.py
@@ -8,6 +8,19 @@ import arm.material.cycles_functions as c_functions
 from arm.material.parser_state import ParserState
 from arm.material.shader import floatstr, vec3str
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    log = arm.reload_module(log)
+    c = arm.reload_module(c)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import floatstr, vec3str
+else:
+    DO_RELOAD_MODULE = True
+
+
 def parse_maprange(node: bpy.types.ShaderNodeMapRange, out_socket: bpy.types.NodeSocket, state: ParserState) -> floatstr:
 
     interp = node.interpolation_type
@@ -40,7 +53,7 @@ def parse_maprange(node: bpy.types.ShaderNodeMapRange, out_socket: bpy.types.Nod
         return f'map_range_smootherstep({value}, {fromMin}, {fromMax}, {toMin}, {toMax})'
 
 def parse_blackbody(node: bpy.types.ShaderNodeBlackbody, out_socket: bpy.types.NodeSocket, state: ParserState) -> vec3str:
-    
+
     t = c.parse_value_input(node.inputs[0])
 
     state.curshader.add_function(c_functions.str_blackbody)
diff --git a/blender/arm/material/cycles_nodes/nodes_input.py b/blender/arm/material/cycles_nodes/nodes_input.py
index 335e56f6..1eb5c5db 100644
--- a/blender/arm/material/cycles_nodes/nodes_input.py
+++ b/blender/arm/material/cycles_nodes/nodes_input.py
@@ -10,6 +10,18 @@ from arm.material.parser_state import ParserState, ParserContext
 from arm.material.shader import floatstr, vec3str
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    log = arm.reload_module(log)
+    c = arm.reload_module(c)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState, ParserContext
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import floatstr, vec3str
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def parse_attribute(node: bpy.types.ShaderNodeAttribute, out_socket: bpy.types.NodeSocket, state: ParserState) -> Union[floatstr, vec3str]:
     out_type = 'float' if out_socket.type == 'VALUE' else 'vec3'
diff --git a/blender/arm/material/cycles_nodes/nodes_shader.py b/blender/arm/material/cycles_nodes/nodes_shader.py
index 4e593bd0..45fec6be 100644
--- a/blender/arm/material/cycles_nodes/nodes_shader.py
+++ b/blender/arm/material/cycles_nodes/nodes_shader.py
@@ -4,6 +4,14 @@ from bpy.types import NodeSocket
 import arm.material.cycles as c
 from arm.material.parser_state import ParserState
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    c = arm.reload_module(c)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState
+else:
+    DO_RELOAD_MODULE = True
+
 
 def parse_mixshader(node: bpy.types.ShaderNodeMixShader, out_socket: NodeSocket, state: ParserState) -> None:
     prefix = '' if node.inputs[0].is_linked else 'const '
diff --git a/blender/arm/material/cycles_nodes/nodes_texture.py b/blender/arm/material/cycles_nodes/nodes_texture.py
index 379d4ca1..406dfba1 100644
--- a/blender/arm/material/cycles_nodes/nodes_texture.py
+++ b/blender/arm/material/cycles_nodes/nodes_texture.py
@@ -6,13 +6,27 @@ import bpy
 
 import arm.assets as assets
 import arm.log as log
-import arm.material.cycles_functions as c_functions
 import arm.material.cycles as c
+import arm.material.cycles_functions as c_functions
 from arm.material.parser_state import ParserState, ParserContext
 from arm.material.shader import floatstr, vec3str
 import arm.utils
 import arm.write_probes as write_probes
 
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    log = arm.reload_module(log)
+    c = arm.reload_module(c)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState, ParserContext
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import floatstr, vec3str
+    arm.utils = arm.reload_module(arm.utils)
+    write_probes = arm.reload_module(write_probes)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def parse_tex_brick(node: bpy.types.ShaderNodeTexBrick, out_socket: bpy.types.NodeSocket, state: ParserState) -> Union[floatstr, vec3str]:
     state.curshader.add_function(c_functions.str_tex_brick)
diff --git a/blender/arm/material/cycles_nodes/nodes_vector.py b/blender/arm/material/cycles_nodes/nodes_vector.py
index 5f78a70b..3a40c378 100644
--- a/blender/arm/material/cycles_nodes/nodes_vector.py
+++ b/blender/arm/material/cycles_nodes/nodes_vector.py
@@ -8,6 +8,17 @@ import arm.material.cycles_functions as c_functions
 from arm.material.parser_state import ParserState
 from arm.material.shader import floatstr, vec3str
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    c = arm.reload_module(c)
+    c_functions = arm.reload_module(c_functions)
+    arm.material.parser_state = arm.reload_module(arm.material.parser_state)
+    from arm.material.parser_state import ParserState
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import floatstr, vec3str
+else:
+    DO_RELOAD_MODULE = True
+
 
 def parse_curvevec(node: bpy.types.ShaderNodeVectorCurve, out_socket: bpy.types.NodeSocket, state: ParserState) -> vec3str:
     fac = c.parse_value_input(node.inputs[0])
@@ -144,7 +155,7 @@ def parse_displacement(node: bpy.types.ShaderNodeDisplacement, out_socket: bpy.t
     return f'(vec3({height}) * {scale})'
 
 def parse_vectorrotate(node: bpy.types.ShaderNodeVectorRotate, out_socket: bpy.types.NodeSocket, state: ParserState) -> vec3str:
-    
+
     type = node.rotation_type
     input_vector: bpy.types.NodeSocket = c.parse_vector_input(node.inputs[0])
     input_center: bpy.types.NodeSocket = c.parse_vector_input(node.inputs[1])
@@ -166,9 +177,9 @@ def parse_vectorrotate(node: bpy.types.ShaderNodeVectorRotate, out_socket: bpy.t
     elif type == 'Y_AXIS':
         return f'vec3( rotate_around_axis({input_vector} - {input_center}, vec3(0.0, 1.0, 0.0), {input_angle} * {input_invert}) + {input_center} )'
     elif type == 'Z_AXIS':
-        return f'vec3( rotate_around_axis({input_vector} - {input_center}, vec3(0.0, 0.0, 1.0), {input_angle} * {input_invert}) + {input_center} )'  
+        return f'vec3( rotate_around_axis({input_vector} - {input_center}, vec3(0.0, 0.0, 1.0), {input_angle} * {input_invert}) + {input_center} )'
     elif type == 'EULER_XYZ':
         state.curshader.add_function(c_functions.str_euler_to_mat3)
         return f'vec3( mat3(({input_invert} < 0.0) ? transpose(euler_to_mat3({input_rotation})) : euler_to_mat3({input_rotation})) * ({input_vector} - {input_center}) + {input_center})'
-    
+
     return f'(vec3(1.0, 0.0, 0.0))'
diff --git a/blender/arm/material/make.py b/blender/arm/material/make.py
index 13a79d33..b067c180 100755
--- a/blender/arm/material/make.py
+++ b/blender/arm/material/make.py
@@ -10,6 +10,15 @@ import arm.material.mat_batch as mat_batch
 import arm.node_utils
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    cycles = arm.reload_module(cycles)
+    make_shader = arm.reload_module(make_shader)
+    mat_batch = arm.reload_module(mat_batch)
+    arm.node_utils = arm.reload_module(arm.node_utils)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def glsl_value(val):
     if str(type(val)) == "<class 'bpy_prop_array'>":
diff --git a/blender/arm/material/make_attrib.py b/blender/arm/material/make_attrib.py
index bc23a620..f82a3ab4 100644
--- a/blender/arm/material/make_attrib.py
+++ b/blender/arm/material/make_attrib.py
@@ -9,6 +9,19 @@ import arm.material.make_tess as make_tess
 from arm.material.shader import Shader, ShaderContext
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    cycles = arm.reload_module(cycles)
+    mat_state = arm.reload_module(mat_state)
+    make_skin = arm.reload_module(make_skin)
+    make_particle = arm.reload_module(make_particle)
+    make_inst = arm.reload_module(make_inst)
+    make_tess = arm.reload_module(make_tess)
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader, ShaderContext
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def write_vertpos(vert):
     billboard = mat_state.material.arm_billboard
diff --git a/blender/arm/material/make_decal.py b/blender/arm/material/make_decal.py
index 32e896e9..c17b1ead 100644
--- a/blender/arm/material/make_decal.py
+++ b/blender/arm/material/make_decal.py
@@ -1,10 +1,19 @@
 import bpy
+
 import arm.material.cycles as cycles
 import arm.material.mat_state as mat_state
-import arm.material.mat_utils as mat_utils
 import arm.material.make_finalize as make_finalize
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    cycles = arm.reload_module(cycles)
+    mat_state = arm.reload_module(mat_state)
+    make_finalize = arm.reload_module(make_finalize)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 def make(context_id):
     wrd = bpy.data.worlds['Arm']
 
diff --git a/blender/arm/material/make_depth.py b/blender/arm/material/make_depth.py
index aa1f0864..4f9115ca 100644
--- a/blender/arm/material/make_depth.py
+++ b/blender/arm/material/make_depth.py
@@ -1,4 +1,5 @@
 import bpy
+
 import arm.material.cycles as cycles
 import arm.material.mat_state as mat_state
 import arm.material.mat_utils as mat_utils
@@ -10,6 +11,21 @@ import arm.material.make_finalize as make_finalize
 import arm.assets as assets
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    cycles = arm.reload_module(cycles)
+    mat_state = arm.reload_module(mat_state)
+    mat_utils = arm.reload_module(mat_utils)
+    make_skin = arm.reload_module(make_skin)
+    make_inst = arm.reload_module(make_inst)
+    make_tess = arm.reload_module(make_tess)
+    make_particle = arm.reload_module(make_particle)
+    make_finalize = arm.reload_module(make_finalize)
+    assets = arm.reload_module(assets)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 def make(context_id, rpasses, shadowmap=False):
 
     is_disp = mat_utils.disp_linked(mat_state.output_node)
diff --git a/blender/arm/material/make_finalize.py b/blender/arm/material/make_finalize.py
index afeeee8f..6477e55c 100644
--- a/blender/arm/material/make_finalize.py
+++ b/blender/arm/material/make_finalize.py
@@ -3,6 +3,14 @@ import bpy
 import arm.material.make_tess as make_tess
 from arm.material.shader import ShaderContext
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    make_tess = arm.reload_module(make_tess)
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import ShaderContext
+else:
+    DO_RELOAD_MODULE = True
+
 
 def make(con_mesh: ShaderContext):
     vert = con_mesh.vert
diff --git a/blender/arm/material/make_mesh.py b/blender/arm/material/make_mesh.py
index db9a2c28..652e6d91 100644
--- a/blender/arm/material/make_mesh.py
+++ b/blender/arm/material/make_mesh.py
@@ -1,4 +1,5 @@
 import bpy
+
 import arm.assets as assets
 import arm.material.mat_state as mat_state
 import arm.material.mat_utils as mat_utils
@@ -10,6 +11,20 @@ import arm.material.make_finalize as make_finalize
 import arm.material.make_attrib as make_attrib
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    mat_state = arm.reload_module(mat_state)
+    mat_utils = arm.reload_module(mat_utils)
+    cycles = arm.reload_module(cycles)
+    make_tess = arm.reload_module(make_tess)
+    make_particle = arm.reload_module(make_particle)
+    make_cluster = arm.reload_module(make_cluster)
+    make_finalize = arm.reload_module(make_finalize)
+    make_attrib = arm.reload_module(make_attrib)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 is_displacement = False
 write_material_attribs = None
 write_material_attribs_post = None
diff --git a/blender/arm/material/make_overlay.py b/blender/arm/material/make_overlay.py
index 47c71df3..de0b0b35 100644
--- a/blender/arm/material/make_overlay.py
+++ b/blender/arm/material/make_overlay.py
@@ -3,6 +3,15 @@ import arm.material.make_mesh as make_mesh
 import arm.material.mat_state as mat_state
 import arm.material.mat_utils as mat_utils
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    make_finalize = arm.reload_module(make_finalize)
+    make_mesh = arm.reload_module(make_mesh)
+    mat_state = arm.reload_module(mat_state)
+    mat_utils = arm.reload_module(mat_utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def make(context_id):
     con = { 'name': context_id, 'depth_write': True, 'compare_mode': 'less', 'cull_mode': 'clockwise' }
diff --git a/blender/arm/material/make_particle.py b/blender/arm/material/make_particle.py
index 2c9a71e2..c62d2040 100644
--- a/blender/arm/material/make_particle.py
+++ b/blender/arm/material/make_particle.py
@@ -1,7 +1,13 @@
-
 import arm.utils
 import arm.material.mat_state as mat_state
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+    mat_state = arm.reload_module(mat_state)
+else:
+    DO_RELOAD_MODULE = True
+
+
 def write(vert, particle_info=None, shadowmap=False):
 
     # Outs
@@ -17,7 +23,7 @@ def write(vert, particle_info=None, shadowmap=False):
 
     str_tex_hash = "float fhash(float n) { return fract(sin(n) * 43758.5453); }\n"
     vert.add_function(str_tex_hash)
-    
+
     prep = 'float '
     if out_age:
         prep = ''
@@ -45,7 +51,7 @@ def write(vert, particle_info=None, shadowmap=False):
     vert.write('}')
 
     # vert.write('p_age /= 2;') # Match
-    
+
     # object_align_factor / 2 + gxyz
     prep = 'vec3 '
     if out_velocity:
diff --git a/blender/arm/material/make_shader.py b/blender/arm/material/make_shader.py
index 93b40391..87307799 100644
--- a/blender/arm/material/make_shader.py
+++ b/blender/arm/material/make_shader.py
@@ -22,6 +22,26 @@ import arm.material.mat_utils as mat_utils
 from arm.material.shader import Shader, ShaderContext, ShaderData
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.api = arm.reload_module(arm.api)
+    assets = arm.reload_module(assets)
+    arm.exporter = arm.reload_module(arm.exporter)
+    log = arm.reload_module(log)
+    cycles = arm.reload_module(cycles)
+    make_decal = arm.reload_module(make_decal)
+    make_depth = arm.reload_module(make_depth)
+    make_mesh = arm.reload_module(make_mesh)
+    make_overlay = arm.reload_module(make_overlay)
+    make_transluc = arm.reload_module(make_transluc)
+    make_voxel = arm.reload_module(make_voxel)
+    mat_state = arm.reload_module(mat_state)
+    mat_utils = arm.reload_module(mat_utils)
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader, ShaderContext, ShaderData
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 rpass_hook = None
 
 
diff --git a/blender/arm/material/make_skin.py b/blender/arm/material/make_skin.py
index d6ea4177..8730b089 100644
--- a/blender/arm/material/make_skin.py
+++ b/blender/arm/material/make_skin.py
@@ -1,5 +1,11 @@
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 def skin_pos(vert):
     vert.add_include('compiled.inc')
 
@@ -15,6 +21,7 @@ def skin_pos(vert):
     vert.write_attrib('spos.xyz += 2.0 * (skinA.w * skinB.xyz - skinB.w * skinA.xyz + cross(skinA.xyz, skinB.xyz)); // Translate')
     vert.write_attrib('spos.xyz /= posUnpack;')
 
+
 def skin_nor(vert, prep):
     rpdat = arm.utils.get_rp()
     vert.write_attrib(prep + 'wnormal = normalize(N * (vec3(nor.xy, pos.w) + 2.0 * cross(skinA.xyz, cross(skinA.xyz, vec3(nor.xy, pos.w)) + skinA.w * vec3(nor.xy, pos.w))));')
diff --git a/blender/arm/material/make_transluc.py b/blender/arm/material/make_transluc.py
index 4257b53e..a1ea5162 100644
--- a/blender/arm/material/make_transluc.py
+++ b/blender/arm/material/make_transluc.py
@@ -1,10 +1,22 @@
 import bpy
+
 import arm.material.cycles as cycles
 import arm.material.mat_state as mat_state
 import arm.material.make_mesh as make_mesh
 import arm.material.make_finalize as make_finalize
 import arm.assets as assets
 
+if "DO_RELOAD_MODULE" in locals():
+	import arm
+	cycles = arm.reload_module(cycles)
+	mat_state = arm.reload_module(mat_state)
+	make_mesh = arm.reload_module(make_mesh)
+	make_finalize = arm.reload_module(make_finalize)
+	assets = arm.reload_module(assets)
+else:
+	DO_RELOAD_MODULE = True
+
+
 def make(context_id):
 	con_transluc = mat_state.data.add_context({ 'name': context_id, 'depth_write': False, 'compare_mode': 'less', 'cull_mode': 'clockwise', \
 		'blend_source': 'blend_one', 'blend_destination': 'blend_one', 'blend_operation': 'add', \
@@ -26,7 +38,7 @@ def make(context_id):
 	if '_VoxelAOvar' in wrd.world_defs:
 		frag.write('indirect *= 0.25;')
 	frag.write('vec4 premultipliedReflect = vec4(vec3(direct + indirect * 0.5) * opacity, opacity);')
-	
+
 	frag.write('float w = clamp(pow(min(1.0, premultipliedReflect.a * 10.0) + 0.01, 3.0) * 1e8 * pow(1.0 - (gl_FragCoord.z) * 0.9, 3.0), 1e-2, 3e3);')
 	frag.write('fragColor[0] = vec4(premultipliedReflect.rgb * w, premultipliedReflect.a);')
 	frag.write('fragColor[1] = vec4(premultipliedReflect.a * w, 0.0, 0.0, 1.0);')
diff --git a/blender/arm/material/make_voxel.py b/blender/arm/material/make_voxel.py
index d86fac29..90dad58d 100644
--- a/blender/arm/material/make_voxel.py
+++ b/blender/arm/material/make_voxel.py
@@ -1,11 +1,16 @@
 import bpy
+
 import arm.utils
 import arm.assets as assets
-import arm.material.cycles as cycles
 import arm.material.mat_state as mat_state
-import arm.material.mat_utils as mat_utils
-import arm.material.make_particle as make_particle
-import arm.make_state as state
+
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+    assets = arm.reload_module(assets)
+    mat_state = arm.reload_module(mat_state)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def make(context_id):
     rpdat = arm.utils.get_rp()
@@ -108,7 +113,7 @@ def make_ao(context_id):
         if rpdat.arm_voxelgi_revoxelize and rpdat.arm_voxelgi_camera:
             vert.add_uniform('vec3 eyeSnap', '_cameraPositionSnap')
             vert.write('voxpositionGeom = (vec3(W * vec4(pos.xyz, 1.0)) - eyeSnap) / voxelgiHalfExtents;')
-        else: 
+        else:
             vert.write('voxpositionGeom = vec3(W * vec4(pos.xyz, 1.0)) / voxelgiHalfExtents;')
 
         geom.add_out('vec3 voxposition')
diff --git a/blender/arm/material/mat_batch.py b/blender/arm/material/mat_batch.py
index dc86eefe..fca06750 100644
--- a/blender/arm/material/mat_batch.py
+++ b/blender/arm/material/mat_batch.py
@@ -1,8 +1,15 @@
-import bpy
 import arm.material.cycles as cycles
 import arm.material.make_shader as make_shader
 import arm.material.mat_state as mat_state
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    cycles = arm.reload_module(cycles)
+    make_shader = arm.reload_module(make_shader)
+    mat_state = arm.reload_module(mat_state)
+else:
+    DO_RELOAD_MODULE = True
+
 # TODO: handle groups
 # TODO: handle cached shaders
 
@@ -21,7 +28,7 @@ def traverse_tree(node, sign):
 def get_signature(mat):
     nodes = mat.node_tree.nodes
     output_node = cycles.node_by_type(nodes, 'OUTPUT_MATERIAL')
-    
+
     if output_node != None:
         sign = traverse_tree(output_node, '')
         # Append flags
@@ -40,7 +47,7 @@ def traverse_tree2(node, ar):
 def get_sorted(mat):
     nodes = mat.node_tree.nodes
     output_node = cycles.node_by_type(nodes, 'OUTPUT_MATERIAL')
-    
+
     if output_node != None:
         ar = []
         traverse_tree2(output_node, ar)
diff --git a/blender/arm/material/mat_utils.py b/blender/arm/material/mat_utils.py
index b1567a72..497061d8 100644
--- a/blender/arm/material/mat_utils.py
+++ b/blender/arm/material/mat_utils.py
@@ -1,9 +1,18 @@
 import bpy
+
 import arm.utils
 import arm.make_state as make_state
 import arm.material.cycles as cycles
 import arm.log as log
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+    make_state = arm.reload_module(make_state)
+    cycles = arm.reload_module(cycles)
+    log = arm.reload_module(log)
+else:
+    DO_RELOAD_MODULE = True
+
 add_mesh_contexts = []
 
 def disp_linked(output_node):
@@ -42,7 +51,7 @@ def get_rpasses(material):
             ar.append('voxel')
         if rpdat.rp_renderer == 'Forward' and rpdat.rp_depthprepass and not material.arm_blending and not material.arm_particle_flag:
             ar.append('depth')
-            
+
     if material.arm_cast_shadow and rpdat.rp_shadows and ('mesh' in ar):
         ar.append('shadowmap')
 
diff --git a/blender/arm/material/parser_state.py b/blender/arm/material/parser_state.py
index 8606e63f..6bd5a1b2 100644
--- a/blender/arm/material/parser_state.py
+++ b/blender/arm/material/parser_state.py
@@ -5,6 +5,13 @@ import bpy
 
 from arm.material.shader import Shader, ShaderContext, vec3str, floatstr
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    arm.material.shader = arm.reload_module(arm.material.shader)
+    from arm.material.shader import Shader, ShaderContext, vec3str, floatstr
+else:
+    DO_RELOAD_MODULE = True
+
 
 class ParserContext(Enum):
     """Describes which kind of node tree is parsed."""
diff --git a/blender/arm/material/shader.py b/blender/arm/material/shader.py
index 8e107628..afddb2f1 100644
--- a/blender/arm/material/shader.py
+++ b/blender/arm/material/shader.py
@@ -1,5 +1,10 @@
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 # Type aliases for type hints to make it easier to see which kind of
 # shader data type is stored in a string
 floatstr = str
diff --git a/blender/arm/node_utils.py b/blender/arm/node_utils.py
index ef465b32..339aef1c 100755
--- a/blender/arm/node_utils.py
+++ b/blender/arm/node_utils.py
@@ -10,6 +10,13 @@ import arm.log
 import arm.logicnode.arm_sockets
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.log = arm.reload_module(arm.log)
+    arm.logicnode.arm_sockets = arm.reload_module(arm.logicnode.arm_sockets)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def find_node_by_link(node_group, to_node, inp):
     for link in node_group.links:
diff --git a/blender/arm/nodes_logic.py b/blender/arm/nodes_logic.py
index 87b73869..d266f920 100755
--- a/blender/arm/nodes_logic.py
+++ b/blender/arm/nodes_logic.py
@@ -11,6 +11,16 @@ import arm.props_traits
 import arm.ui_icons as ui_icons
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    arm_nodes = arm.reload_module(arm_nodes)
+    arm.logicnode.replacement = arm.reload_module(arm.logicnode.replacement)
+    arm.logicnode = arm.reload_module(arm.logicnode)
+    arm.props_traits = arm.reload_module(arm.props_traits)
+    ui_icons = arm.reload_module(ui_icons)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 registered_nodes = []
 registered_categories = []
 
diff --git a/blender/arm/nodes_material.py b/blender/arm/nodes_material.py
index ef9a8f1e..04bfd8a7 100644
--- a/blender/arm/nodes_material.py
+++ b/blender/arm/nodes_material.py
@@ -7,6 +7,14 @@ import arm.material.arm_nodes.arm_nodes as arm_nodes
 # even if it looks unused
 from arm.material.arm_nodes import *
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    arm_nodes = arm.reload_module(arm_nodes)
+    arm.material.arm_nodes = arm.reload_module(arm.material.arm_nodes)
+    from arm.material.arm_nodes import *
+else:
+    DO_RELOAD_MODULE = True
+
 registered_nodes = []
 
 
diff --git a/blender/arm/profiler.py b/blender/arm/profiler.py
index 87f7a0a2..ca96b70f 100644
--- a/blender/arm/profiler.py
+++ b/blender/arm/profiler.py
@@ -5,6 +5,13 @@ import pstats
 import arm.log as log
 import arm.utils as utils
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    log = arm.reload_module(log)
+    utils = arm.reload_module(utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 class Profile:
     """Context manager for profiling the enclosed code when the given condition is true.
diff --git a/blender/arm/props.py b/blender/arm/props.py
index 8f3d9af2..80d8fb5c 100755
--- a/blender/arm/props.py
+++ b/blender/arm/props.py
@@ -10,6 +10,16 @@ import arm.nodes_logic
 import arm.proxy
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    arm.logicnode.replacement = arm.reload_module(arm.logicnode.replacement)
+    arm.make = arm.reload_module(arm.make)
+    arm.nodes_logic = arm.reload_module(arm.nodes_logic)
+    arm.proxy = arm.reload_module(arm.proxy)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 # Armory version
 arm_version = '2021.7'
 arm_commit = '$Id$'
diff --git a/blender/arm/props_bake.py b/blender/arm/props_bake.py
index e433e682..b096b36d 100644
--- a/blender/arm/props_bake.py
+++ b/blender/arm/props_bake.py
@@ -1,10 +1,19 @@
-import arm.utils
-import arm.assets
 import bpy
 from bpy.types import Menu, Panel, UIList
 from bpy.props import *
+
 from arm.lightmapper import operators, properties, utility
 
+import arm.assets
+import arm.utils
+
+if "DO_RELOAD_MODULE" in locals():
+    arm.assets = arm.reload_module(arm.assets)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 class ArmBakeListItem(bpy.types.PropertyGroup):
     obj: PointerProperty(type=bpy.types.Object, description="The object to bake")
     res_x: IntProperty(name="X", description="Texture resolution", default=1024)
@@ -166,7 +175,7 @@ class ArmBakeButton(bpy.types.Operator):
                     img_node.image = img
                 img_node.select = True
                 nodes.active = img_node
-        
+
         obs = bpy.context.view_layer.objects
 
         # Unwrap
@@ -379,4 +388,4 @@ def unregister():
     #Unregister lightmapper
 
     operators.unregister()
-    properties.unregister()
\ No newline at end of file
+    properties.unregister()
diff --git a/blender/arm/props_exporter.py b/blender/arm/props_exporter.py
index 0dc2f143..775489c2 100644
--- a/blender/arm/props_exporter.py
+++ b/blender/arm/props_exporter.py
@@ -1,14 +1,23 @@
 import os
 import shutil
-import arm.assets as assets
-import arm.utils
-import bpy
 import stat
 import subprocess
 import webbrowser
+
+import bpy
 from bpy.types import Menu, Panel, UIList
 from bpy.props import *
 
+import arm.assets as assets
+import arm.utils
+
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
+
 def remove_readonly(func, path, excinfo):
     os.chmod(path, stat.S_IWRITE)
     func(path)
@@ -417,7 +426,7 @@ def register():
     bpy.types.World.arm_exporterlist = CollectionProperty(type=ArmExporterListItem)
     bpy.types.World.arm_exporterlist_index = IntProperty(name="Index for my_list", default=0)
     bpy.types.World.arm_exporter_android_permission_list = CollectionProperty(type=ArmExporterAndroidPermissionListItem)
-    bpy.types.World.arm_exporter_android_permission_list_index = IntProperty(name="Index for my_list", default=0)    
+    bpy.types.World.arm_exporter_android_permission_list_index = IntProperty(name="Index for my_list", default=0)
     bpy.types.World.arm_exporter_android_abi_list = CollectionProperty(type=ArmExporterAndroidAbiListItem)
     bpy.types.World.arm_exporter_android_abi_list_index = IntProperty(name="Index for my_list", default=0)
 
diff --git a/blender/arm/props_lod.py b/blender/arm/props_lod.py
index 44bfdca9..2ad67bf2 100755
--- a/blender/arm/props_lod.py
+++ b/blender/arm/props_lod.py
@@ -1,5 +1,4 @@
 import bpy
-from bpy.types import Menu, Panel, UIList
 from bpy.props import *
 
 def update_size_prop(self, context):
diff --git a/blender/arm/props_renderpath.py b/blender/arm/props_renderpath.py
index cd7db3ea..08aa947a 100644
--- a/blender/arm/props_renderpath.py
+++ b/blender/arm/props_renderpath.py
@@ -4,6 +4,12 @@ from bpy.props import *
 import arm.assets as assets
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    assets = arm.reload_module(assets)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 atlas_sizes = [ ('256', '256', '256'),
                 ('512', '512', '512'),
                 ('1024', '1024', '1024'),
diff --git a/blender/arm/props_traits.py b/blender/arm/props_traits.py
index eba08da8..74918ee2 100755
--- a/blender/arm/props_traits.py
+++ b/blender/arm/props_traits.py
@@ -6,6 +6,7 @@ from typing import Union
 import webbrowser
 
 from bpy.types import NodeTree
+from bpy.props import *
 import bpy.utils.previews
 
 import arm.make as make
@@ -15,6 +16,17 @@ import arm.ui_icons as ui_icons
 import arm.utils
 import arm.write_data as write_data
 
+if "DO_RELOAD_MODULE" in locals():
+    arm.make = arm.reload_module(arm.make)
+    arm.props_traits_props = arm.reload_module(arm.props_traits_props)
+    from arm.props_traits_props import *
+    proxy = arm.reload_module(proxy)
+    ui_icons = arm.reload_module(ui_icons)
+    arm.utils = arm.reload_module(arm.utils)
+    arm.write_data = arm.reload_module(arm.write_data)
+else:
+    DO_RELOAD_MODULE = True
+
 ICON_HAXE = ui_icons.get_id('haxe')
 ICON_NODES = 'NODETREE'
 ICON_CANVAS = 'NODE_COMPOSITING'
@@ -103,13 +115,13 @@ class ARM_UL_TraitList(bpy.types.UIList):
         custom_icon = "NONE"
         custom_icon_value = 0
         if item.type_prop == "Haxe Script":
-            custom_icon_value = ui_icons.get_id("haxe")
+            custom_icon_value = ICON_HAXE
         elif item.type_prop == "WebAssembly":
-            custom_icon_value = ui_icons.get_id("wasm")
+            custom_icon_value = ICON_WASM
         elif item.type_prop == "UI Canvas":
             custom_icon = "NODE_COMPOSITING"
         elif item.type_prop == "Bundled Script":
-            custom_icon_value = ui_icons.get_id("bundle")
+            custom_icon_value = ICON_BUNDLED
         elif item.type_prop == "Logic Nodes":
             custom_icon = 'NODETREE'
 
diff --git a/blender/arm/props_traits_props.py b/blender/arm/props_traits_props.py
index 24931612..b65072cf 100644
--- a/blender/arm/props_traits_props.py
+++ b/blender/arm/props_traits_props.py
@@ -1,6 +1,8 @@
 import bpy
 from bpy.props import *
 
+__all__ = ['ArmTraitPropWarning', 'ArmTraitPropListItem', 'ARM_UL_PropList']
+
 PROP_TYPE_ICONS = {
     "String": "SORTALPHA",
     "Int": "CHECKBOX_DEHLT",
diff --git a/blender/arm/props_ui.py b/blender/arm/props_ui.py
index 4a37b470..3132880d 100644
--- a/blender/arm/props_ui.py
+++ b/blender/arm/props_ui.py
@@ -5,6 +5,8 @@ import shutil
 import bpy
 from bpy.props import *
 
+from arm.lightmapper.panels import scene
+
 import arm.api
 import arm.assets as assets
 from arm.exporter import ArmoryExporter
@@ -20,10 +22,24 @@ import arm.proxy
 import arm.ui_icons as ui_icons
 import arm.utils
 
-from arm.lightmapper.utility import icon
-from arm.lightmapper.properties.denoiser import oidn, optix
-from arm.lightmapper.panels import scene
-import importlib
+if "DO_RELOAD_MODULE" in locals():
+    arm.api = arm.reload_module(arm.api)
+    assets = arm.reload_module(assets)
+    arm.exporter = arm.reload_module(arm.exporter)
+    from arm.exporter import ArmoryExporter
+    log = arm.reload_module(log)
+    arm.logicnode.replacement = arm.reload_module(arm.logicnode.replacement)
+    make = arm.reload_module(make)
+    state = arm.reload_module(state)
+    props = arm.reload_module(props)
+    arm.props_properties = arm.reload_module(arm.props_properties)
+    arm.props_traits = arm.reload_module(arm.props_traits)
+    arm.nodes_logic = arm.reload_module(arm.nodes_logic)
+    arm.proxy = arm.reload_module(arm.proxy)
+    ui_icons = arm.reload_module(ui_icons)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
 
 
 class ARM_PT_ObjectPropsPanel(bpy.types.Panel):
@@ -213,7 +229,7 @@ class ARM_PT_PhysicsPropsPanel(bpy.types.Panel):
 
         if obj.soft_body is not None:
             layout.prop(obj, 'arm_soft_body_margin')
-        
+
         if obj.rigid_body_constraint is not None:
             layout.prop(obj, 'arm_relative_physics_constraint')
 
diff --git a/blender/arm/ui_icons.py b/blender/arm/ui_icons.py
index ed2649f5..9a40b4f0 100644
--- a/blender/arm/ui_icons.py
+++ b/blender/arm/ui_icons.py
@@ -6,6 +6,19 @@ from typing import Optional
 
 import bpy.utils.previews
 
+if "DO_RELOAD_MODULE" in locals():
+    # _unload_icons is not available in the module scope yet
+    def __unload():
+        _unload_icons()
+
+    # Refresh icons after reload
+    __unload()
+else:
+    DO_RELOAD_MODULE = True
+
+
+__all__ = ["get_id"]
+
 _icons_dict: Optional[bpy.utils.previews.ImagePreviewCollection] = None
 """Dictionary of all loaded icons, or `None` if not loaded"""
 
@@ -13,21 +26,28 @@ _icons_dir = os.path.join(os.path.dirname(__file__), "custom_icons")
 """Directory of the icon files"""
 
 
-def _load_icons() -> None:
-    """(Re)loads all icons"""
+def _load_icons():
+    """(Re)loads all icons."""
     global _icons_dict
 
-    if _icons_dict is not None:
-        bpy.utils.previews.remove(_icons_dict)
+    _unload_icons()
 
     _icons_dict = bpy.utils.previews.new()
-    _icons_dict.load("bundle", os.path.join(_icons_dir, "bundle.png"), 'IMAGE')
-    _icons_dict.load("haxe", os.path.join(_icons_dir, "haxe.png"), 'IMAGE')
-    _icons_dict.load("wasm", os.path.join(_icons_dir, "wasm.png"), 'IMAGE')
+    _icons_dict.load("bundle", os.path.join(_icons_dir, "bundle.png"), 'IMAGE', force_reload=True)
+    _icons_dict.load("haxe", os.path.join(_icons_dir, "haxe.png"), 'IMAGE', force_reload=True)
+    _icons_dict.load("wasm", os.path.join(_icons_dir, "wasm.png"), 'IMAGE', force_reload=True)
+
+
+def _unload_icons():
+    """Unloads all icons."""
+    global _icons_dict
+    if _icons_dict is not None:
+        bpy.utils.previews.remove(_icons_dict)
+    _icons_dict = None
 
 
 def get_id(identifier: str) -> int:
-    """Returns the icon ID from the given identifier"""
+    """Returns the icon ID from the given identifier."""
     if _icons_dict is None:
         _load_icons()
     return _icons_dict[identifier].icon_id
diff --git a/blender/arm/utils.py b/blender/arm/utils.py
index 7a9f1084..40a7c6d6 100755
--- a/blender/arm/utils.py
+++ b/blender/arm/utils.py
@@ -1,13 +1,14 @@
+from enum import Enum, unique
 import glob
 import json
+import locale
 import os
 import platform
 import re
+import shlex
 import subprocess
 from typing import Any, Dict, List, Optional, Tuple
 import webbrowser
-import shlex
-import locale
 
 import numpy as np
 
@@ -18,7 +19,17 @@ from arm.lib.lz4 import LZ4
 import arm.log as log
 import arm.make_state as state
 import arm.props_renderpath
-from enum import Enum, unique
+
+if "DO_RELOAD_MODULE" in locals():
+    arm.lib.armpack = arm.reload_module(arm.lib.armpack)
+    arm.lib.lz4 = arm.reload_module(arm.lib.lz4)
+    from arm.lib.lz4 import LZ4
+    log = arm.reload_module(log)
+    state = arm.reload_module(state)
+    arm.props_renderpath = arm.reload_module(arm.props_renderpath)
+else:
+    DO_RELOAD_MODULE = True
+
 
 class NumpyEncoder(json.JSONEncoder):
     def default(self, obj):
diff --git a/blender/arm/write_data.py b/blender/arm/write_data.py
index 0eb56dc9..0e0cac42 100755
--- a/blender/arm/write_data.py
+++ b/blender/arm/write_data.py
@@ -11,6 +11,14 @@ import arm.assets as assets
 import arm.make_state as state
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    assets = arm.reload_module(assets)
+    state = arm.reload_module(state)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def on_same_drive(path1: str, path2: str) -> bool:
     drive_path1, _ = os.path.splitdrive(path1)
diff --git a/blender/arm/write_probes.py b/blender/arm/write_probes.py
index f6ca036e..83a55a37 100644
--- a/blender/arm/write_probes.py
+++ b/blender/arm/write_probes.py
@@ -11,6 +11,14 @@ import arm.assets as assets
 import arm.log as log
 import arm.utils
 
+if "DO_RELOAD_MODULE" in locals():
+    import arm
+    assets = arm.reload_module(assets)
+    log = arm.reload_module(log)
+    arm.utils = arm.reload_module(arm.utils)
+else:
+    DO_RELOAD_MODULE = True
+
 
 def add_irr_assets(output_file_irr):
     assets.add(output_file_irr + '.arm')
diff --git a/blender/start.py b/blender/start.py
index d53cc4b3..19d75bd2 100755
--- a/blender/start.py
+++ b/blender/start.py
@@ -1,3 +1,7 @@
+import time
+
+import arm
+import arm.log
 import arm.nodes_logic
 import arm.nodes_material
 import arm.props_traits_props
@@ -15,8 +19,38 @@ import arm.handlers
 import arm.utils
 import arm.keymap
 
+reload_started = 0
+
+if "DO_RELOAD_MODULE" in locals():
+    arm.log.debug('Reloading Armory SDK...')
+    reload_started = time.time()
+
+    # Clear the module cache
+    import importlib
+    arm = importlib.reload(arm)  # type: ignore
+
+    arm.nodes_logic = arm.reload_module(arm.nodes_logic)
+    arm.nodes_material = arm.reload_module(arm.nodes_material)
+    arm.props_traits_props = arm.reload_module(arm.props_traits_props)
+    arm.props_traits = arm.reload_module(arm.props_traits)
+    arm.props_lod = arm.reload_module(arm.props_lod)
+    arm.props_tilesheet = arm.reload_module(arm.props_tilesheet)
+    arm.props_exporter = arm.reload_module(arm.props_exporter)
+    arm.props_bake = arm.reload_module(arm.props_bake)
+    arm.props_renderpath = arm.reload_module(arm.props_renderpath)
+    arm.props_properties = arm.reload_module(arm.props_properties)
+    arm.props_collision_filter_mask = arm.reload_module(arm.props_collision_filter_mask)
+    arm.props = arm.reload_module(arm.props)
+    arm.props_ui = arm.reload_module(arm.props_ui)
+    arm.handlers = arm.reload_module(arm.handlers)
+    arm.utils = arm.reload_module(arm.utils)
+    arm.keymap = arm.reload_module(arm.keymap)
+else:
+    DO_RELOAD_MODULE = True
+
 registered = False
 
+
 def register(local_sdk=False):
     global registered
     registered = True
@@ -37,6 +71,10 @@ def register(local_sdk=False):
     arm.handlers.register()
     arm.props_collision_filter_mask.register()
 
+    if reload_started != 0:
+        arm.log.debug(f'Armory SDK: Reloading finished in {time.time() - reload_started:.3f}s')
+
+
 def unregister():
     global registered
     registered = False