diff --git a/korman/__init__.py b/korman/__init__.py
index f7b0df8..824cfd8 100644
--- a/korman/__init__.py
+++ b/korman/__init__.py
@@ -14,6 +14,7 @@
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+from . import addon_prefs
 from . import exporter, render
 from . import properties, ui
 from . import nodes
@@ -26,8 +27,7 @@ bl_info = {
     "location":    "File > Import-Export",
     "description": "Exporter for Cyan Worlds' Plasma Engine",
     "warning":     "beta",
-    "category":    "System",  # Eventually, we will hide some of the default
-                              # Blender panels (think materials)
+    "category":    "System",
 }
 
 
diff --git a/korman/addon_prefs.py b/korman/addon_prefs.py
new file mode 100644
index 0000000..94a3011
--- /dev/null
+++ b/korman/addon_prefs.py
@@ -0,0 +1,76 @@
+#    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 *
+
+game_versions = [("pvPrime", "Ages Beyond Myst (63.11)", "Targets the original Uru (Live) game"),
+                 ("pvPots", "Path of the Shell (63.12)", "Targets the most recent offline expansion pack"),
+                 ("pvMoul", "Myst Online: Uru Live (70)", "Targets the most recent online game")]
+
+class PlasmaGame(bpy.types.PropertyGroup):
+    name = StringProperty(name="Name",
+                          description="Name of the Plasma Game",
+                          options=set())
+    path = StringProperty(name="Path",
+                          description="Path to this Plasma Game",
+                          options=set())
+    version = EnumProperty(name="Version",
+                           description="Plasma version of this game",
+                           items=game_versions,
+                           options=set())
+
+
+class KormanAddonPreferences(bpy.types.AddonPreferences):
+    bl_idname = __package__
+
+    games = CollectionProperty(type=PlasmaGame)
+    active_game_index = IntProperty(options={"SKIP_SAVE"})
+
+    def draw(self, context):
+        layout = self.layout
+
+        layout.label("Plasma Games:")
+        row = layout.row()
+        row.template_list("PlasmaGameListRW", "games", self, "games", self,
+                          "active_game_index", rows=2)
+        col = row.column(align=True)
+        col.operator("world.plasma_game_add", icon="ZOOMIN", text="")
+        col.operator("world.plasma_game_remove", icon="ZOOMOUT", text="")
+        col.operator("world.plasma_game_convert", icon="IMPORT", text="")
+
+        # Game Properties
+        active_game_index = self.active_game_index
+        if bool(self.games) and active_game_index < len(self.games):
+            active_game = self.games[active_game_index]
+
+            layout.separator()
+            box = layout.box()
+
+            box.prop(active_game, "path", emboss=False)
+            box.prop(active_game, "version")
+            box.separator()
+
+            row = box.row(align=True)
+            op = row.operator("world.plasma_game_add", icon="FILE_FOLDER", text="Change Path")
+            op.filepath = active_game.path
+            op.game_index = active_game_index
+
+    @classmethod
+    def register(cls):
+        # Register the old-timey per-world Plasma Games for use in the conversion
+        # operator. What fun. I guess....
+        from .properties.prop_world import PlasmaGames
+        PlasmaGames.games = CollectionProperty(type=PlasmaGame)
diff --git a/korman/operators/op_export.py b/korman/operators/op_export.py
index 3a098f9..adec5bd 100644
--- a/korman/operators/op_export.py
+++ b/korman/operators/op_export.py
@@ -19,9 +19,10 @@ import cProfile
 from pathlib import Path
 import pstats
 
+from ..addon_prefs import game_versions
 from .. import exporter
 from ..helpers import UiHelper
-from ..properties.prop_world import PlasmaAge, game_versions
+from ..properties.prop_world import PlasmaAge
 from ..korlib import ConsoleToggler
 
 class ExportOperator(bpy.types.Operator):
diff --git a/korman/operators/op_ui.py b/korman/operators/op_ui.py
index 0f23da4..ffa3b17 100644
--- a/korman/operators/op_ui.py
+++ b/korman/operators/op_ui.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 addon_utils
 import bpy
 from bpy.props import *
 
@@ -87,3 +88,17 @@ class CollectionRemoveOperator(UIOperator, bpy.types.Operator):
             return {"FINISHED"}
         else:
             return {"CANCELLED"}
+
+
+class OpenAddonPrefs(UIOperator, bpy.types.Operator):
+    bl_idname = "ui.korman_open_prefs"
+    bl_label = "Open Korman Preferences"
+    bl_description = "Opens the Korman User Preferences"
+
+    def execute(self, context):
+        bpy.ops.screen.userpref_show("INVOKE_DEFAULT")
+        context.user_preferences.active_section = "ADDONS"
+        context.window_manager.addon_filter = "System"
+        korman_addon = addon_utils.addons_fake_modules["korman"]
+        addon_utils.module_bl_info(korman_addon)["show_expanded"] = True
+        return {"FINISHED"}
diff --git a/korman/operators/op_world.py b/korman/operators/op_world.py
index 7affe66..866a580 100644
--- a/korman/operators/op_world.py
+++ b/korman/operators/op_world.py
@@ -32,38 +32,35 @@ class GameAddOperator(AgeOperator, bpy.types.Operator):
     game_index = IntProperty(default=-1, options={"HIDDEN"})
 
     def execute(self, context):
-        w = context.world
-        if w:
-            # First, verify this is a valid Uru directory...
-            path = Path(self.filepath)
-
-            # Blendsucks likes to tack filenames onto our doggone directories...
-            if not path.is_dir():
-                path = path.parent
-            if not ((path / "UruExplorer.exe").is_file() or (path / "plClient.exe").is_file()):
-                self.report({"ERROR"}, "The selected directory is not a copy of URU.")
-                return {"CANCELLED"}
+        prefs = context.user_preferences.addons["korman"].preferences
 
-            # New game?
-            games = w.plasma_games
-            new_game = self.game_index == -1
-            if new_game:
-                games.active_game_index = len(games.games)
-                game = games.games.add()
-            else:
-                game = games.games[self.game_index]
+        # First, verify this is a valid Uru directory...
+        path = Path(self.filepath)
 
-            # Setup game...
-            game.path = str(path)
-            if (path / "cypython22.dll").is_file():
-                game.version = "pvPots"
-            else:
-                game.version = "pvMoul"
-            game.name = path.name
+        # Blendsucks likes to tack filenames onto our doggone directories...
+        if not path.is_dir():
+            path = path.parent
+        if not ((path / "UruExplorer.exe").is_file() or (path / "plClient.exe").is_file()):
+            self.report({"ERROR"}, "The selected directory is not a copy of URU.")
+            return {"CANCELLED"}
 
-            return {"FINISHED"}
+        # New game?
+        new_game = self.game_index == -1
+        if new_game:
+            prefs.active_game_index = len(prefs.games)
+            game = prefs.games.add()
         else:
-            return {"CANCELLED"}
+            game = prefs.games[self.game_index]
+
+        # Setup game...
+        game.path = str(path)
+        if (path / "cypython22.dll").is_file():
+            game.version = "pvPots"
+        else:
+            game.version = "pvMoul"
+        game.name = path.name
+
+        return {"FINISHED"}
 
 
     def invoke(self, context, event):
@@ -71,20 +68,53 @@ class GameAddOperator(AgeOperator, bpy.types.Operator):
         return {"RUNNING_MODAL"}
 
 
+class GameConvertOperator(AgeOperator, bpy.types.Operator):
+    bl_idname = "world.plasma_game_convert"
+    bl_label = "This will save your User Preferences file!"
+    bl_description = "Load old per-file Plasma Games into your user preferences"
+
+    def draw(self, context):
+        self.layout.label("test")
+
+    def execute(self, context):
+        prefs = context.user_preferences.addons["korman"].preferences
+        w = context.scene.world
+
+        for old_game in w.plasma_games.games:
+            # don't add dupe games
+            match = next((i for i in prefs.games if i.path == old_game.path), None)
+            if match is not None:
+                continue
+
+            new_game = prefs.games.add()
+            new_game.name = old_game.name
+            new_game.path = old_game.path
+            new_game.version = old_game.version
+
+        w.plasma_games.games.clear()
+        bpy.ops.wm.save_userpref()
+        return {"FINISHED"}
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_confirm(self, event)
+
+    @classmethod
+    def poll(cls, context):
+        return super().poll(context) and bool(context.scene.world.plasma_games.games)
+
+
 class GameRemoveOperator(AgeOperator, bpy.types.Operator):
     bl_idname = "world.plasma_game_remove"
     bl_label = "Remove Plasma Game"
 
     def execute(self, context):
-        w = context.world
-        if w:
-            games = w.plasma_games
-            if games.active_game_index >= len(games.games):
-                return {"CANCELLED"}
-            games.games.remove(games.active_game_index)
-            return {"FINISHED"}
-        else:
+        prefs = context.user_preferences.addons["korman"].preferences
+
+        if prefs.active_game_index >= len(prefs.games):
             return {"CANCELLED"}
+        prefs.games.remove(prefs.active_game_index)
+        prefs.active_game_index = max(prefs.active_game_index - 1, -1)
+        return {"FINISHED"}
 
 
 class PageAddOperator(AgeOperator, bpy.types.Operator):
diff --git a/korman/properties/modifiers/gui.py b/korman/properties/modifiers/gui.py
index 257c3bb..62cecdf 100644
--- a/korman/properties/modifiers/gui.py
+++ b/korman/properties/modifiers/gui.py
@@ -20,8 +20,8 @@ import mathutils
 from bpy.props import *
 from PyHSPlasma import *
 
+from ...addon_prefs import game_versions
 from .base import PlasmaModifierProperties, PlasmaModifierLogicWiz
-from .logic import game_versions
 from ... import idprops
 
 
diff --git a/korman/properties/modifiers/logic.py b/korman/properties/modifiers/logic.py
index 2dea10e..261bc02 100644
--- a/korman/properties/modifiers/logic.py
+++ b/korman/properties/modifiers/logic.py
@@ -17,8 +17,8 @@ import bpy
 from bpy.props import *
 from PyHSPlasma import *
 
+from ...addon_prefs import game_versions
 from .base import PlasmaModifierProperties
-from ..prop_world import game_versions
 from ...exporter import ExportError
 from ... import idprops
 
diff --git a/korman/properties/prop_world.py b/korman/properties/prop_world.py
index 9f32b43..1e159a5 100644
--- a/korman/properties/prop_world.py
+++ b/korman/properties/prop_world.py
@@ -17,9 +17,7 @@ import bpy
 from bpy.props import *
 from PyHSPlasma import *
 
-game_versions = [("pvPrime", "Ages Beyond Myst (63.11)", "Targets the original Uru (Live) game"),
-                 ("pvPots", "Path of the Shell (63.12)", "Targets the most recent offline expansion pack"),
-                 ("pvMoul", "Myst Online: Uru Live (70)", "Targets the most recent online game")]
+from ..addon_prefs import game_versions
 
 class PlasmaFni(bpy.types.PropertyGroup):
     bl_idname = "world.plasma_fni"
@@ -58,23 +56,9 @@ class PlasmaFni(bpy.types.PropertyGroup):
                       min=1)
 
 
-class PlasmaGame(bpy.types.PropertyGroup):
-    name = StringProperty(name="Name",
-                          description="Name of the Plasma Game",
-                          options=set())
-    path = StringProperty(name="Path",
-                          description="Path to this Plasma Game",
-                          options=set())
-    version = EnumProperty(name="Version",
-                           description="Plasma version of this game",
-                           items=game_versions,
-                           options=set())
-
-
 class PlasmaGames(bpy.types.PropertyGroup):
     bl_idname = "world.plasma_games"
 
-    games = CollectionProperty(type=PlasmaGame)
     active_game_index = IntProperty(options={"HIDDEN"})
 
     @property
diff --git a/korman/ui/ui_world.py b/korman/ui/ui_world.py
index c5580c4..543cc26 100644
--- a/korman/ui/ui_world.py
+++ b/korman/ui/ui_world.py
@@ -34,41 +34,39 @@ class PlasmaGamePanel(AgeButtonsPanel, bpy.types.Panel):
 
     def draw(self, context):
         layout = self.layout
+        prefs = context.user_preferences.addons["korman"].preferences
         games = context.world.plasma_games
         age = context.world.plasma_age
 
         row = layout.row()
-        row.template_list("PlasmaGameList", "games", games, "games", games,
+        # Remember: game storage moved to addon preferences!
+        row.template_list("PlasmaGameListRO", "games", prefs, "games", games,
                           "active_game_index", rows=2)
-        col = row.column(align=True)
-        col.operator("world.plasma_game_add", icon="ZOOMIN", text="")
-        col.operator("world.plasma_game_remove", icon="ZOOMOUT", text="")
+        row.operator("ui.korman_open_prefs", icon="PREFERENCES", text="")
 
-        # Game Properties
+        # Game Tools
         active_game_index = games.active_game_index
-        if active_game_index < len(games.games):
-            active_game = games.games[active_game_index]
+        if active_game_index < len(prefs.games):
+            active_game = prefs.games[active_game_index]
+        else:
+            active_game = None
 
-            layout.separator()
-            box = layout.box()
+        layout.separator()
+        row = layout.row(align=True)
 
-            box.prop(active_game, "path", emboss=False)
-            box.prop(active_game, "version")
-            box.separator()
-
-            row = box.row(align=True)
-            op = row.operator("world.plasma_game_add", icon="FILE_FOLDER", text="Change Path")
-            op.filepath = active_game.path
-            op.game_index = active_game_index
-            row = row.row(align=True)
-            row.operator_context = "EXEC_DEFAULT"
-            row.enabled = bool(age.age_name.strip())
-            op = row.operator("export.plasma_age", icon="EXPORT")
+        row.operator_context = "EXEC_DEFAULT"
+        row.enabled = bool(age.age_name.strip()) and active_game is not None
+        op = row.operator("export.plasma_age", icon="EXPORT")
+        if active_game is not None:
             op.filepath = str((Path(active_game.path) / "dat" / age.age_name).with_suffix(".age"))
             op.version = active_game.version
 
 
-class PlasmaGameList(bpy.types.UIList):
+class PlasmaGameListRO(bpy.types.UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_property, index=0, flt_flag=0):
+        layout.label(item.name, icon="BOOKMARKS")
+
+class PlasmaGameListRW(bpy.types.UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_property, index=0, flt_flag=0):
         layout.prop(item, "name", text="", emboss=False, icon="BOOKMARKS")