diff --git a/korman/__init__.py b/korman/__init__.py
index bc52614..cd51a9c 100644
--- a/korman/__init__.py
+++ b/korman/__init__.py
@@ -16,6 +16,7 @@
 import bpy
 from . import exporter, render
 from . import properties, ui
+from . import nodes
 from . import operators
 
 bl_info = {
@@ -37,6 +38,7 @@ def register():
     bpy.utils.register_module(__name__)
 
     # Sigh... Blender isn't totally automated.
+    nodes.register()
     operators.register()
     properties.register()
 
@@ -44,6 +46,7 @@ def register():
 def unregister():
     """Unregisters all Blender operators and GUI items"""
     bpy.utils.unregister_module(__name__)
+    nodes.unregister()
     operators.unregister()
 
 
diff --git a/korman/exporter/convert.py b/korman/exporter/convert.py
index fc24434..4d3dfa6 100644
--- a/korman/exporter/convert.py
+++ b/korman/exporter/convert.py
@@ -111,7 +111,7 @@ class Exporter:
 
                 # Instead of exporting a skeleton now, we'll just make an orphaned CI.
                 # The bl_obj export will make this work.
-                parent_ci = self.mgr.find_create_key(parent, plCoordinateInterface).object
+                parent_ci = self.mgr.find_create_key(plCoordinateInterface, bl=bo, so=so).object
                 parent_ci.addChild(so.key)
             else:
                 self.report.warn("You have parented Plasma Object '{}' to '{}', which has not been marked for export. \
@@ -122,7 +122,7 @@ class Exporter:
         """Ensures that the SceneObject has a CoordinateInterface"""
         if not so.coord:
             print("    Exporting CoordinateInterface")
-            ci = self.mgr.find_create_key(bo, plCoordinateInterface).object
+            ci = self.mgr.find_create_key(plCoordinateInterface, bl=bo, so=so).object
 
             # Now we have the "fun" work of filling in the CI
             ci.localToWorld = utils.matrix44(bo.matrix_basis)
@@ -148,7 +148,7 @@ class Exporter:
             # Create a sceneobject if one does not exist.
             # Before we call the export_fn, we need to determine if this object is an actor of any
             # sort, and barf out a CI.
-            sceneobject = self.mgr.find_create_key(bl_obj, plSceneObject).object
+            sceneobject = self.mgr.find_create_key(plSceneObject, bl=bl_obj).object
             self._export_actor(sceneobject, bl_obj)
             export_fn(sceneobject, bl_obj)
 
diff --git a/korman/exporter/manager.py b/korman/exporter/manager.py
index 7706ea7..fa7e10d 100644
--- a/korman/exporter/manager.py
+++ b/korman/exporter/manager.py
@@ -91,7 +91,7 @@ class ExportManager:
 
         if isinstance(pl, plObjInterface):
             if so is None:
-                key = self.find_key(bl, plSceneObject)
+                key = self.find_key(plSceneObject, bl)
                 # prevent race conditions
                 if key is None:
                     so = self.add_object(plSceneObject, name=name, loc=location)
@@ -158,22 +158,26 @@ class ExportManager:
             self._nodes[location] = None
         return location
 
-    def find_create_key(self, bl_obj, pClass, so=None):
-        key = self.find_key(bl_obj, pClass, so=so)
+    def find_create_key(self, pClass, bl=None, name=None, so=None):
+        key = self.find_key(pClass, bl, name, so)
         if key is None:
-            key = self.add_object(pl=pClass, bl=bl_obj, so=so).key
+            key = self.add_object(pl=pClass, name=name, bl=bl, so=so).key
         return key
 
-    def find_key(self, bl_obj, pClass, so=None):
+    def find_key(self, pClass, bl=None, name=None, so=None):
         """Given a blender Object and a Plasma class, find (or create) an exported plKey"""
+        assert (bl or name) and (bl or so)
+
         if so is None:
-            location = self._pages[bl_obj.plasma_object.page]
+            location = self._pages[bl.plasma_object.page]
         else:
             location = so.key.location
+        if name is None:
+            name = bl.name
 
         index = plFactory.ClassIndex(pClass.__name__)
         for key in self.mgr.getKeys(location, index):
-            if bl_obj.name == key.name:
+            if name == key.name:
                 return key
         return None
 
diff --git a/korman/exporter/rtlight.py b/korman/exporter/rtlight.py
index 0fc8bbf..7cf29df 100644
--- a/korman/exporter/rtlight.py
+++ b/korman/exporter/rtlight.py
@@ -92,7 +92,7 @@ class LightConverter:
     def _create_light_key(self, bo, bl_light, so):
         try:
             xlate = _BL2PL[bl_light.type]
-            return self.mgr.find_create_key(bo, xlate, so=so)
+            return self.mgr.find_create_key(xlate, bl=bo, so=so)
         except LookupError:
             raise BlenderOptionNotSupported("Object ('{}') lamp type '{}'".format(bo.name, bl_light.type))
 
diff --git a/korman/nodes/__init__.py b/korman/nodes/__init__.py
new file mode 100644
index 0000000..d34b022
--- /dev/null
+++ b/korman/nodes/__init__.py
@@ -0,0 +1,67 @@
+#    This file is part of Korman.
+#
+#    Korman is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    Korman is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+import inspect
+from nodeitems_utils import NodeCategory, NodeItem
+import nodeitems_utils
+
+# Put all Korman node modules here...
+from .node_conditions import *
+from .node_core import *
+from .node_messages import *
+from .node_responder import *
+
+class PlasmaNodeCategory(NodeCategory):
+    """Plasma Node Category"""
+
+    @classmethod
+    def poll(cls, context):
+        return (context.space_data.tree_type == "PlasmaNodeTree")
+
+# Here's what you need to know about this...
+# If you add a new category, put the pretty name here!
+# If you're making a new Node, ensure that your bl_idname attribute is present AND matches
+#     the class name. Otherwise, absolutely fascinating things will happen. Don't expect for me
+#     to come and rescue you from it, either.
+_kategory_names = {
+    "CONDITIONS": "Conditions",
+    "LOGIC": "Logic",
+    "MSG": "Message",
+}
+
+# Now, generate the categories as best we can...
+_kategories = {}
+for cls in dict(globals()).values():
+    if inspect.isclass(cls):
+        if not issubclass(cls, PlasmaNodeBase) or not issubclass(cls, bpy.types.Node):
+            continue
+    else:
+        continue
+    try:
+        _kategories[cls.bl_category].append(cls)
+    except LookupError:
+        _kategories[cls.bl_category] = [cls,]
+_actual_kategories = []
+for i in sorted(_kategories.keys(), key=lambda x: _kategory_names[x]):
+    # Note that even though we're sorting the category names, Blender appears to not care...
+    _kat_items = [NodeItem(j.bl_idname) for j in sorted(_kategories[i], key=lambda x: x.bl_label)]
+    _actual_kategories.append(PlasmaNodeCategory(i, _kategory_names[i], items=_kat_items))
+
+def register():
+    nodeitems_utils.register_node_categories("PLASMA_NODES", _actual_kategories)
+
+def unregister():
+    nodeitems_utils.unregister_node_categories("PLASMA_NODES")
diff --git a/korman/nodes/node_conditions.py b/korman/nodes/node_conditions.py
new file mode 100644
index 0000000..6aad214
--- /dev/null
+++ b/korman/nodes/node_conditions.py
@@ -0,0 +1,178 @@
+#    This file is part of Korman.
+#
+#    Korman is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    Korman is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from bpy.props import *
+from PyHSPlasma import *
+
+from .node_core import PlasmaNodeBase, PlasmaNodeSocketBase
+from ..properties.modifiers.physics import bounds_types
+
+class PlasmaConditionSocket(PlasmaNodeSocketBase, bpy.types.NodeSocket):
+    bl_color = (0.188, 0.086, 0.349, 1.0)
+
+
+class PlasmaVolumeReportNode(PlasmaNodeBase, bpy.types.Node):
+    bl_category = "CONDITIONS"
+    bl_idname = "PlasmaVoumeReportNode"
+    bl_label = "Region Trigger Settings"
+
+    report_when = EnumProperty(name="When",
+                               description="When the region should trigger",
+                               items=[("each", "Each Event", "The region will trigger on every enter/exit"),
+                                      ("first", "First Event", "The region will trigger on the first event only"),
+                                      ("count", "Population", "When the region has a certain number of objects inside it")])
+    threshold = IntProperty(name="Threshold",
+                    description="How many objects should be in the region for it to trigger",
+                    min=1)
+
+    def init(self, context):
+        self.outputs.new("PlasmaVolumeSettingsSocketOut", "Trigger Settings")
+
+    def draw_buttons(self, context, layout):
+        layout.prop(self, "report_when")
+        if self.report_when == "count":
+            row = layout.row()
+            row.label("Threshold: ")
+            row.prop(self, "threshold", text="")
+
+
+class PlasmaVolumeSensorNode(PlasmaNodeBase, bpy.types.Node):
+    bl_category = "CONDITIONS"
+    bl_idname = "PlasmaVolumeSensorNode"
+    bl_label = "Region Sensor"
+    bl_width_default = 190
+
+    # Region Mesh
+    region = StringProperty(name="Region",
+                            description="Object that defines the region mesh")
+    bounds = EnumProperty(name="Bounds",
+                          description="Physical object's bounds",
+                          items=bounds_types)
+
+    # Detector Properties
+    report_on = EnumProperty(name="Triggerers",
+                             description="What triggers this region?",
+                             options={"ANIMATABLE", "ENUM_FLAG"},
+                             items=[("avatar", "Avatars", "Avatars trigger this region"),
+                                    ("dynamics", "Dynamics", "Any non-avatar dynamic physical object (eg kickables)")],
+                             default={"avatar"})
+
+    def init(self, context):
+        self.inputs.new("PlasmaVolumeSettingsSocketIn", "Trigger on Enter", "enter")
+        self.inputs.new("PlasmaVolumeSettingsSocketIn", "Trigger on Exit", "exit")
+        self.outputs.new("PlasmaConditionSocket", "Satisfies", "satisfies")
+
+    def draw_buttons(self, context, layout):
+        layout.prop(self, "report_on")
+
+        # Okay, if they changed the name of the ObData, that's THEIR problem...
+        layout.prop_search(self, "region", bpy.data, "objects", icon="MESH_DATA")
+        layout.prop(self, "bounds")
+
+    def export(self, exporter, tree, bo, so):
+        interface = exporter.mgr.add_object(plInterfaceInfoModifier, name=self.create_key_name(tree), so=so)
+
+        # Region Enters
+        enter_simple = self.find_input_socket("enter").allow
+        enter_settings = self.find_input("enter", "PlasmaVolumeReportNode")
+        if enter_simple or enter_settings is not None:
+            key = self._export_volume_event(exporter, tree, bo, so, plVolumeSensorConditionalObject.kTypeEnter, enter_settings)
+            interface.addIntfKey(key)
+
+        # Region Exits
+        exit_simple = self.find_input_socket("exit").allow
+        exit_settings = self.find_input("exit", "PlasmaVolumeReportNode")
+        if exit_simple or exit_settings is not None:
+            key = self._export_volume_event(exporter, tree, bo, so, plVolumeSensorConditionalObject.kTypeExit, exit_settings)
+            interface.addIntfKey(key)
+
+        # Don't forget to export the physical object itself!
+        # [trollface.jpg]
+        simIface, physical = exporter.physics.generate_physical(bo, so, "{}_VolumeSensor".format(bo.name))
+        phys_bo = bpy.data.objects[self.region]
+        exporter.physics.export(phys_bo, physical, self.bounds)
+
+        physical.memberGroup = plSimDefs.kGroupDetector
+        if "avatar" in self.report_on:
+            physical.reportGroup |= 1 << plSimDefs.kGroupAvatar
+        if "dynamics" in self.report_on:
+            physical.reportGroup |= 1 << plSimDefs.kGroupDynamic
+
+    def _export_volume_event(self, exporter, tree, bo, so, event, settings):
+        if event == plVolumeSensorConditionalObject.kTypeEnter:
+            suffix = "Enter"
+        else:
+            suffix = "Exit"
+
+        theName = "{}_{}_{}".format(tree.name, self.name, suffix)
+        print("        [LogicModifier '{}']".format(theName))
+        logicKey = exporter.mgr.find_create_key(plLogicModifier, name=theName, so=so)
+        logicmod = logicKey.object
+        logicmod.setLogicFlag(plLogicModifier.kMultiTrigger, True)
+
+        # LogicMod notification... This is one of the cases where the linked node needs to match
+        # exactly one key...
+        notify = plNotifyMsg()
+        notify.BCastFlags = (plMessage.kNetPropagate | plMessage.kLocalPropagate)
+        for i in self.find_outputs("satisfies"):
+            key = i.get_key(exporter, tree, so)
+            if key is None:
+                print("            WARNING: '{}' Node '{}' doesn't expose a key. It won't be triggered!".format(i.bl_idname, i.name))
+            else:
+                notify.addReceiver(key)
+        logicmod.notify = notify
+
+        # Now, the detector objects
+        print("        [ObjectInVolumeDetector '{}']".format(theName))
+        detKey = exporter.mgr.find_create_key(plObjectInVolumeDetector, name=theName, so=so)
+        det = detKey.object
+
+        print("        [VolumeSensorConditionalObject '{}']".format(theName))
+        volKey = exporter.mgr.find_create_key(plVolumeSensorConditionalObject, name=theName, so=so)
+        volsens = volKey.object
+
+        volsens.type = event
+        if settings is not None:
+            if settings.report_when == "first":
+                volsens.first = True
+            elif settings.report_when == "threshold":
+                volsens.trigNum = settings.threshold
+
+        # There appears to be a mandatory order for these keys...
+        det.addReceiver(volKey)
+        det.addReceiver(logicKey)
+
+        # End mandatory order
+        logicmod.addCondition(volKey)
+        return logicKey
+
+
+
+class PlasmaVolumeSettingsSocket(PlasmaNodeSocketBase):
+    bl_color = (43.1, 24.7, 0.0, 1.0)
+
+
+class PlasmaVolumeSettingsSocketIn(PlasmaVolumeSettingsSocket, bpy.types.NodeSocket):
+    allow = BoolProperty()
+
+    def draw(self, context, layout, node, text):
+        if not self.is_linked:
+            layout.prop(self, "allow", text="")
+        layout.label(text)
+
+
+class PlasmaVolumeSettingsSocketOut(PlasmaVolumeSettingsSocket, bpy.types.NodeSocket):
+    pass
diff --git a/korman/nodes/node_core.py b/korman/nodes/node_core.py
new file mode 100644
index 0000000..f214310
--- /dev/null
+++ b/korman/nodes/node_core.py
@@ -0,0 +1,139 @@
+#    This file is part of Korman.
+#
+#    Korman is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    Korman is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
+
+import abc
+import bpy
+
+class PlasmaNodeBase:
+    def create_key_name(self, tree):
+        return "{}_{}".format(tree.name, self.name)
+
+    def get_key(self, exporter, tree, so):
+        return None
+
+    def export(self, exporter, tree, bo, so):
+        pass
+
+    def find_input(self, key, idname=None):
+        for i in self.inputs:
+            if i.identifier == key:
+                if i.links:
+                    node = i.links[0].from_node
+                    if idname is not None and idname != node.bl_idname:
+                        return None
+                    return node
+                else:
+                    return None
+        raise KeyError(key)
+
+    def find_input_socket(self, key):
+        for i in self.inputs:
+            if i.identifier == key:
+                return i
+        raise KeyError(key)
+
+    def find_output(self, key, idname=None):
+        for i in self.outputs:
+            if i.identifier == key:
+                if i.links:
+                    node = i.links[0].to_node
+                    if idname is not None and idname != node.bl_idname:
+                        return None
+                    return node
+                else:
+                    return None
+        raise KeyError(key)
+
+    def find_outputs(self, key, idname=None):
+        for i in self.outputs:
+            if i.identifier == key:
+                for j in i.links:
+                    node = j.to_node
+                    if idname is not None and idname != node.bl_idname:
+                        continue
+                    yield node
+
+    def find_output_socket(self, key):
+        for i in self.outputs:
+            if i.identifier == key:
+                return i
+        raise KeyError(key)
+
+    def link_input(self, tree, node, out_key, in_key):
+        """Links a given Node's output socket to a given input socket on this Node"""
+        if isinstance(in_key, str):
+            in_socket = self.find_input_socket(in_key)
+        else:
+            in_socket = in_key
+        if isinstance(out_key, str):
+            out_socket = node.find_output_socket(out_key)
+        else:
+            out_socket = out_key
+        link = tree.links.new(in_socket, out_socket)
+
+    def link_output(self, tree, node, out_key, in_key):
+        """Links a given Node's input socket to a given output socket on this Node"""
+        if isinstance(in_key, str):
+            in_socket = node.find_input_socket(in_key)
+        else:
+            in_socket = in_key
+        if isinstance(out_key, str):
+            out_socket = self.find_output_socket(out_key)
+        else:
+            out_socket = out_key
+        link = tree.links.new(in_socket, out_socket)
+
+    @classmethod
+    def poll(cls, context):
+        return (context.bl_idname == "PlasmaNodeTree")
+
+
+class PlasmaNodeVariableInput(PlasmaNodeBase):
+    def ensure_sockets(self, idname, name, identifier=None):
+        """Ensures there is one (and only one) empty input socket"""
+        empty = [i for i in self.inputs if i.bl_idname == idname and not i.links]
+        if not empty:
+            if identifier is None:
+                self.inputs.new(idname, name)
+            else:
+                self.inputs.new(idname, name, identifier)
+        while len(empty) > 1:
+            self.inputs.remove(empty.pop())
+
+
+class PlasmaNodeSocketBase:
+    def draw(self, context, layout, node, text):
+        layout.label(text)
+
+    def draw_color(self, context, node):
+        # It's so tempting to just do RGB sometimes... Let's be nice.
+        if len(self.bl_color) == 3:
+            return tuple(self.bl_color[0], self.bl_color[1], self.bl_color[2], 1.0)
+        return self.bl_color
+
+
+class PlasmaNodeTree(bpy.types.NodeTree):
+    bl_idname = "PlasmaNodeTree"
+    bl_label = "Plasma"
+    bl_icon = "NODETREE"
+
+    def export(self, exporter, bo, so):
+        # just pass it off to each node
+        for node in self.nodes:
+            node.export(exporter, self, bo, so)
+
+    @classmethod
+    def poll(cls, context):
+        return (context.scene.render.engine == "PLASMA_GAME")
diff --git a/korman/nodes/node_messages.py b/korman/nodes/node_messages.py
new file mode 100644
index 0000000..ccb8080
--- /dev/null
+++ b/korman/nodes/node_messages.py
@@ -0,0 +1,46 @@
+#    This file is part of Korman.
+#
+#    Korman is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    Korman is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from bpy.props import *
+from PyHSPlasma import *
+
+from .node_core import *
+from ..properties.modifiers.region import footstep_surfaces, footstep_surface_ids
+
+class PlasmaMessageSocket(PlasmaNodeSocketBase, bpy.types.NodeSocket):
+    bl_color = (0.004, 0.282, 0.349, 1.0)
+
+
+class PlasmaFootstepSoundMsgNode(PlasmaNodeBase, bpy.types.Node):
+    bl_category = "MSG"
+    bl_idname = "PlasmaFootstepSoundMsgNode"
+    bl_label = "Footstep Sound"
+
+    surface = EnumProperty(name="Surface",
+                           description="What kind of surface are we walking on?",
+                           items=footstep_surfaces,
+                           default="stone")
+
+    def init(self, context):
+        self.inputs.new("PlasmaMessageSocket", "Sender", "sender")
+
+    def draw_buttons(self, context, layout):
+        layout.prop(self, "surface")
+
+    def convert_message(self, exporter):
+        msg = plArmatureEffectStateMsg()
+        msg.surface = footstep_surface_ids[self.surface]
+        return msg
diff --git a/korman/nodes/node_responder.py b/korman/nodes/node_responder.py
new file mode 100644
index 0000000..9f6e24b
--- /dev/null
+++ b/korman/nodes/node_responder.py
@@ -0,0 +1,234 @@
+#    This file is part of Korman.
+#
+#    Korman is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    Korman is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from bpy.props import *
+from PyHSPlasma import *
+import uuid
+
+from .node_core import *
+
+class PlasmaResponderNode(PlasmaNodeVariableInput, bpy.types.Node):
+    bl_category = "LOGIC"
+    bl_idname = "PlasmaResponderNode"
+    bl_label = "Responder"
+    bl_width_default = 145
+
+    detect_trigger = BoolProperty(name="Detect Trigger",
+                                  description="When notified, trigger the Responder",
+                                  default=True)
+    detect_untrigger = BoolProperty(name="Detect UnTrigger",
+                                    description="When notified, untrigger the Responder",
+                                    default=False)
+    no_ff_sounds = BoolProperty(name="Don't F-Fwd Sounds",
+                                description="When fast-forwarding, play sound effects",
+                                default=False)
+
+    def init(self, context):
+        self.inputs.new("PlasmaConditionSocket", "Condition", "condition")
+        self.outputs.new("PlasmaRespStateSocket", "States", "states")
+
+    def draw_buttons(self, context, layout):
+        self.ensure_sockets("PlasmaConditionSocket", "Condition", "condition")
+
+        layout.prop(self, "detect_trigger")
+        layout.prop(self, "detect_untrigger")
+        layout.prop(self, "no_ff_sounds")
+
+    def get_key(self, exporter, tree, so):
+        return exporter.mgr.find_create_key(plResponderModifier, name=self.create_key_name(tree), so=so)
+
+    def export(self, exporter, tree, bo, so):
+        responder = self.get_key(exporter, tree, so).object
+        if not bo.plasma_net.manual_sdl:
+            responder.setExclude("Responder")
+
+        if self.detect_trigger:
+            responder.flags |= plResponderModifier.kDetectTrigger
+        if self.detect_untrigger:
+            responder.flags |= plResponderModifier.kDetectUnTrigger
+        if self.no_ff_sounds:
+            responder.flags |= plResponderModifier.kSkipFFSound
+
+        class ResponderStateMgr:
+            def __init__(self, respNode, respMod):
+                self.states = []
+                self.parent = respNode
+                self.responder = respMod
+
+            def get_state(self, node):
+                for idx, (theNode, theState) in enumerate(self.states):
+                    if theNode == node:
+                        return (idx, theState)
+                state = plResponderModifier_State()
+                self.states.append((node, state))
+                return (len(self.states) - 1, state)
+
+            def save(self):
+                resp = self.responder
+                resp.clearStates()
+                for node, state in self.states:
+                    resp.addState(state)
+
+        # Convert the Responder states
+        stateMgr = ResponderStateMgr(self, responder)
+        for stateNode in self.find_outputs("states", "PlasmaResponderStateNode"):
+            stateNode.convert_state(exporter, stateMgr)
+        stateMgr.save()
+
+
+class PlasmaResponderStateNode(PlasmaNodeVariableInput, bpy.types.Node):
+    bl_category = "LOGIC"
+    bl_idname = "PlasmaResponderStateNode"
+    bl_label = "Responder State"
+
+    default_state = BoolProperty(name="Default State",
+                                 description="This state is the responder's default",
+                                 default=False)
+
+    def init(self, context):
+        self.inputs.new("PlasmaRespStateSocket", "Condition", "condition")
+        self.outputs.new("PlasmaRespCommandSocket", "Commands", "cmds")
+        self.outputs.new("PlasmaRespStateSocket", "Trigger", "gotostate").link_limit = 1
+
+    def draw_buttons(self, context, layout):
+        # This actually draws nothing, but it makes sure we have at least one empty input slot
+        # We need this because it's possible that multiple OTHER states can call us
+        self.ensure_sockets("PlasmaRespStateSocket", "Condition", "condition")
+
+        # Now draw a prop
+        layout.prop(self, "default_state")
+
+    def convert_state(self, exporter, stateMgr):
+        idx, state = stateMgr.get_state(self)
+
+        # No sanity checking here. Hopefully nothing crazy has happened in the UI.
+        if self.default_state:
+            stateMgr.responder.curState = idx
+
+        # Where do we go from heah?
+        toStateNode = self.find_output("gotostate", "PlasmaResponderStateNode")
+        if toStateNode is None:
+            state.switchToState = idx
+        else:
+            toIdx, toState = stateMgr.get_state(toStateNode)
+            state.switchToState = toIdx
+
+        class CommandMgr:
+            def __init__(self):
+                self.commands = []
+                self.waits = {}
+
+            def add_command(self, node):
+                cmd = type("ResponderCommand", (), {"msg": None, "waitOn": -1})
+                self.commands.append((node, cmd))
+                return (len(self.commands) - 1, cmd)
+
+            def add_wait(self, parentCmd):
+                try:
+                    idx = self.commands.index(parentCmd)
+                except ValueError:
+                    # The parent command didn't export for some reason... Probably no message.
+                    # So, wait on nothing!
+                    return -1
+                else:
+                    wait = len(self.waits)
+                    self.waits[wait] = idx
+                    return idx
+
+            def save(self, state):
+                for node, cmd in self.commands:
+                    # Amusing, PyHSPlasma doesn't actually want a plResponderModifier_Cmd
+                    # Meh, I'll let this one slide.
+                    state.addCommand(cmd.msg, cmd.waitOn)
+                state.numCallbacks = len(self.waits)
+                state.waitToCmd = self.waits
+
+        # Convert the commands
+        commands = CommandMgr()
+        for i in self.find_outputs("cmds", "PlasmaResponderCommandNode"):
+            # slight optimization--commands attached to states can't wait on other commands
+            # namely because it's impossible to wait on a command that doesn't exist...
+            i.convert_command(exporter, stateMgr.responder, commands, True)
+        commands.save(state)
+
+
+class PlasmaRespStateSocket(PlasmaNodeSocketBase, bpy.types.NodeSocket):
+    bl_color = (0.388, 0.78, 0.388, 1.0)
+
+
+class PlasmaResponderCommandNode(PlasmaNodeBase, bpy.types.Node):
+    bl_category = "LOGIC"
+    bl_idname = "PlasmaResponderCommandNode"
+    bl_label = "Responder Command"
+
+    def init(self, context):
+        self.inputs.new("PlasmaRespCommandSocket", "Condition", "whodoneit")
+        self.outputs.new("PlasmaMessageSocket", "Message", "msg")
+        self.outputs.new("PlasmaRespCommandSocket", "Trigger", "trigger")
+
+    def convert_command(self, exporter, responder, commandMgr, forceNoWait=False):
+        # If this command has no message, there is no need to export it...
+        msgNode = self.find_output("msg")
+        if msgNode is not None:
+            idx, command = commandMgr.add_command(self)
+
+            # If the thingthatdoneit is another command, we need to register a wait.
+            # We could hack and assume the parent is idx-1, but that won't work if the parent has many
+            # child commands. Le whoops!
+            if not forceNoWait:
+                parentCmd = self.find_input("whodoneit", "PlasmaResponderCommandNode")
+                if parentCmd is not None:
+                    command.waitOn = commandMgr.add_wait(parentCmd)
+
+            # Finally, convert our message...
+            msg = msgNode.convert_message(exporter)
+            self._finalize_message(exporter, responder, msg)
+
+            # If we have child commands, we need to make sure that we support chaining this message as a callback
+            # If not, we'll export our children and tell them to not actually wait on us.
+            haveChildren = self.find_output("trigger", "PlasmaResponderCommandNode") is not None
+            if haveChildren:
+                nowait = not self._add_msg_callback(exporter, responder, msg)
+            command.msg = msg
+        else:
+            nowait = True
+
+        # Export any child commands
+        for i in self.find_outputs("trigger", "PlasmaResponderCommandNode"):
+            i.convert_command(exporter, responder, commandMgr, nowait)
+
+    _bcast_flags = {
+        plArmatureEffectStateMsg: (plMessage.kPropagateToModifiers | plMessage.kNetPropagate),
+    }
+
+    def _finalize_message(self, exporter, responder, msg):
+        msg.sender = responder.key
+
+        # BCast Flags are pretty common...
+        _cls = msg.__class__
+        if _cls in self._bcast_flags:
+            msg.BCastFlags = self._bcast_flags[_cls]
+        msg.BCastFlags |= plMessage.kLocalPropagate
+
+    def _add_msg_callback(self, exporter, responder, msg):
+        """Prepares a given message to be a callback to the responder"""
+        # We do not support callback messages ATM
+        return False
+
+
+class PlasmaRespCommandSocket(PlasmaNodeSocketBase, bpy.types.NodeSocket):
+    bl_color = (0.451, 0.0, 0.263, 1.0)
+
diff --git a/korman/operators/op_modifier.py b/korman/operators/op_modifier.py
index 6b5311f..6c4e882 100644
--- a/korman/operators/op_modifier.py
+++ b/korman/operators/op_modifier.py
@@ -15,6 +15,7 @@
 
 import bpy
 from bpy.props import *
+import time
 
 from ..properties import modifiers
 
@@ -123,3 +124,27 @@ class ModifierMoveDownOperator(ModifierMoveOperator, bpy.types.Operator):
         if self.active_modifier < last:
             self.swap_modifier_ids(plmods, self.active_modifier, self.active_modifier+1)
         return {"FINISHED"}
+
+
+class ModifierLogicWizOperator(ModifierOperator, bpy.types.Operator):
+    bl_idname = "object.plasma_logicwiz"
+    bl_label = "Plasma LogicWiz"
+    bl_description = "Generates logic nodes from a given modifier on the active object"
+
+    modifier = StringProperty(name="Modifier", default="footstep")
+
+    def execute(self, context):
+        obj = context.active_object
+        mod = getattr(obj.plasma_modifiers, self.modifier)
+
+        print("--- Plasma LogicWiz ---")
+        print("Object: '{}'".format(obj.name))
+        print("Modifier: '{}'".format(self.modifier))
+        if not mod.enabled:
+            print("WRN: This modifier is not actually enabled!")
+
+        start = time.process_time()
+        mod.logicwiz(obj)
+        end = time.process_time()
+        print("\nLogicWiz finished in {:.2f} seconds".format(end-start))
+        return {"FINISHED"}
diff --git a/korman/properties/modifiers/base.py b/korman/properties/modifiers/base.py
index a8a5211..7f15211 100644
--- a/korman/properties/modifiers/base.py
+++ b/korman/properties/modifiers/base.py
@@ -13,6 +13,7 @@
 #    You should have received a copy of the GNU General Public License
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
+import abc
 import bpy
 from bpy.props import *
 
@@ -48,3 +49,17 @@ class PlasmaModifierProperties(bpy.types.PropertyGroup):
                                          "default": True,
                                          "options": {"HIDDEN"}})
     }
+
+
+class PlasmaModifierLogicWiz:
+    @property
+    def node_tree(self):
+        name = self.display_name
+        try:
+            return bpy.data.node_groups[name]
+        except LookupError:
+            return bpy.data.node_groups.new(name, "PlasmaNodeTree")
+
+    @abc.abstractmethod
+    def logicwiz(self, bo):
+        pass
diff --git a/korman/properties/modifiers/logic.py b/korman/properties/modifiers/logic.py
index e1c3965..92ac41b 100644
--- a/korman/properties/modifiers/logic.py
+++ b/korman/properties/modifiers/logic.py
@@ -14,10 +14,29 @@
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+from bpy.props import *
 from PyHSPlasma import *
 
 from .base import PlasmaModifierProperties
 
+class PlasmaAdvancedLogic(PlasmaModifierProperties):
+    pl_id = "advanced_logic"
+
+    bl_category = "Logic"
+    bl_label = "Advanced"
+    bl_description = "Plasma Logic Nodes"
+    bl_icon = "NODETREE"
+
+    tree_name = StringProperty(name="Node Tree", description="Plasma Logic Nodes")
+
+    def created(self, obj):
+        self.display_name = "Advanced Logic"
+
+    def export(self, exporter, bo, so):
+        tree = bpy.data.node_groups[self.tree_name]
+        tree.export(exporter, bo, so)
+
+
 class PlasmaSpawnPoint(PlasmaModifierProperties):
     pl_id = "spawnpoint"
 
diff --git a/korman/properties/modifiers/region.py b/korman/properties/modifiers/region.py
index 899a6c5..89c96f3 100644
--- a/korman/properties/modifiers/region.py
+++ b/korman/properties/modifiers/region.py
@@ -17,7 +17,98 @@ import bpy
 from bpy.props import *
 from PyHSPlasma import *
 
-from .base import PlasmaModifierProperties
+from .base import PlasmaModifierProperties, PlasmaModifierLogicWiz
+from .physics import bounds_types
+
+footstep_surface_ids = {
+    "dirt": 0,
+    # 1 = NULL
+    "puddle": 2,
+    # 3 = tile (NULL in MOUL)
+    "metal": 4,
+    "woodbridge": 5,
+    "rope": 6,
+    "grass": 7,
+    # 8 = NULL
+    "woodfloor": 9,
+    "rug": 10,
+    "stone": 11,
+    # 12 = NULL
+    # 13 = metal ladder (dupe of metal)
+    "woodladder": 14,
+    "water": 15,
+    # 16 = maintainer's glass (NULL in PotS)
+    # 17 = maintainer's metal grating (NULL in PotS)
+    # 18 = swimming (why would you want this?)
+}
+
+footstep_surfaces = [("dirt", "Dirt", "Dirt"),
+                     ("grass", "Grass", "Grass"),
+                     ("metal", "Metal", "Metal Catwalk"),
+                     ("puddle", "Puddle", "Shallow Water"),
+                     ("rope", "Rope", "Rope Ladder"),
+                     ("rug", "Rug", "Carpet Rug"),
+                     ("stone", "Stone", "Stone Tile"),
+                     ("water", "Water", "Deep Water"),
+                     ("woodbridge", "Wood Bridge", "Wood Bridge"),
+                     ("woodfloor", "Wood Floor", "Wood Floor"),
+                     ("woodladder", "Wood Ladder", "Wood Ladder")]
+
+class PlasmaFootstepRegion(PlasmaModifierProperties, PlasmaModifierLogicWiz):
+    pl_id = "footstep"
+
+    bl_category = "Region"
+    bl_label = "Footstep"
+    bl_description = "Footstep Region"
+
+    surface = EnumProperty(name="Surface",
+                           description="What kind of surface are we walking on?",
+                           items=footstep_surfaces,
+                           default="stone")
+    bounds = EnumProperty(name="Region Bounds",
+                          description="Physical object's bounds",
+                          items=bounds_types,
+                          default="hull")
+
+
+    def created(self, obj):
+        self.display_name = "{}_FootRgn".format(obj.name)
+
+    def export(self, exporter, bo, so):
+        # Generate the logic nodes now
+        self.logicwiz(bo)
+
+        # Now, export the node tree
+        self.node_tree.export(exporter, bo, so)
+
+    def logicwiz(self, bo):
+        tree = self.node_tree
+        nodes = tree.nodes
+        nodes.clear()
+
+        # Region Sensor
+        volsens = nodes.new("PlasmaVolumeSensorNode")
+        volsens.name = "RegionSensor"
+        volsens.region = bo.name
+        volsens.bounds = self.bounds
+        volsens.find_input_socket("enter").allow = True
+        volsens.find_input_socket("exit").allow = True
+
+        # Responder
+        respmod = nodes.new("PlasmaResponderNode")
+        respmod.name = "Resp"
+        respmod.link_input(tree, volsens, "satisfies", "condition")
+        respstate = nodes.new("PlasmaResponderStateNode")
+        respstate.link_input(tree, respmod, "states", "condition")
+        respstate.default_state = True
+        respcmd = nodes.new("PlasmaResponderCommandNode")
+        respcmd.link_input(tree, respstate, "cmds", "whodoneit")
+
+        # ArmatureEffectStateMsg
+        msg = nodes.new("PlasmaFootstepSoundMsgNode")
+        msg.link_input(tree, respcmd, "msg", "sender")
+        msg.surface = self.surface
+
 
 class PlasmaPanicLinkRegion(PlasmaModifierProperties):
     pl_id = "paniclink"
diff --git a/korman/ui/modifiers/logic.py b/korman/ui/modifiers/logic.py
index 08cc998..c250d02 100644
--- a/korman/ui/modifiers/logic.py
+++ b/korman/ui/modifiers/logic.py
@@ -13,6 +13,11 @@
 #    You should have received a copy of the GNU General Public License
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
+import bpy
+
+def advanced_logic(modifier, layout, context):
+    layout.prop_search(modifier, "tree_name", bpy.data, "node_groups", icon="NODETREE")
+
 def spawnpoint(modifier, layout, context):
     layout.label(text="The Y axis indicates the direction the avatar is facing.")
 
diff --git a/korman/ui/modifiers/region.py b/korman/ui/modifiers/region.py
index 111967d..823e408 100644
--- a/korman/ui/modifiers/region.py
+++ b/korman/ui/modifiers/region.py
@@ -13,6 +13,10 @@
 #    You should have received a copy of the GNU General Public License
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
+def footstep(modifier, layout, context):
+    layout.prop(modifier, "bounds")
+    layout.prop(modifier, "surface")
+
 def paniclink(modifier, layout, context):
     split = layout.split()
     col = split.column()