diff --git a/d3xp/GameBase.h b/d3xp/GameBase.h
new file mode 100644
index 0000000..9ff3a4a
--- /dev/null
+++ b/d3xp/GameBase.h
@@ -0,0 +1,81 @@
+/*
+===========================================================================
+
+Doom 3 GPL Source Code
+Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
+
+This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
+
+Doom 3 Source Code 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.
+
+Doom 3 Source Code 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#ifndef __GAMEBASE_H__
+#define	__GAMEBASE_H__
+
+// default scripts
+#define SCRIPT_DEFAULTDEFS		"script/doom_defs.script"
+#define SCRIPT_DEFAULT			"script/doom_main.script"
+#define SCRIPT_DEFAULTFUNC		"doom_main"
+
+#define TIME_GROUP1				0
+#define TIME_GROUP2				1
+
+#define LAGO_IMG_WIDTH			64
+#define LAGO_IMG_HEIGHT			64
+#define LAGO_WIDTH				64
+#define LAGO_HEIGHT				44
+#define LAGO_MATERIAL			"textures/sfx/lagometer"
+#define LAGO_IMAGE				"textures/sfx/lagometer.tga"
+
+// if set to 1 the server sends the client PVS with snapshots and the client compares against what it sees
+#ifndef ASYNC_WRITE_PVS
+	#define ASYNC_WRITE_PVS 0
+#endif
+
+// the "gameversion" client command will print this plus compile date
+#define	GAME_VERSION			"baseDOOM-1"
+
+#define	MAX_CLIENTS				32
+#define	GENTITYNUM_BITS			12
+#define	MAX_GENTITIES			(1<<GENTITYNUM_BITS)
+#define	ENTITYNUM_NONE			(MAX_GENTITIES-1)
+#define	ENTITYNUM_WORLD			(MAX_GENTITIES-2)
+#define	ENTITYNUM_MAX_NORMAL	(MAX_GENTITIES-2)
+
+#define MAX_GAME_MESSAGE_SIZE	8192
+#define MAX_ENTITY_STATE_SIZE	512
+#define ENTITY_PVS_SIZE			((MAX_GENTITIES+31)>>5)
+
+// content masks
+#define	MASK_ALL				(-1)
+#define	MASK_SOLID				(CONTENTS_SOLID)
+#define	MASK_MONSTERSOLID		(CONTENTS_SOLID|CONTENTS_MONSTERCLIP|CONTENTS_BODY)
+#define	MASK_PLAYERSOLID		(CONTENTS_SOLID|CONTENTS_PLAYERCLIP|CONTENTS_BODY)
+#define	MASK_DEADSOLID			(CONTENTS_SOLID|CONTENTS_PLAYERCLIP)
+#define	MASK_WATER				(CONTENTS_WATER)
+#define	MASK_OPAQUE				(CONTENTS_OPAQUE)
+#define	MASK_SHOT_RENDERMODEL	(CONTENTS_SOLID|CONTENTS_RENDERMODEL)
+#define	MASK_SHOT_BOUNDINGBOX	(CONTENTS_SOLID|CONTENTS_BODY)
+
+#define DEFAULT_GRAVITY_STRING	"1066"
+
+extern void gameError( const char *fmt, ... );
+
+#endif
diff --git a/d3xp/Game_local.h b/d3xp/Game_local.h
index 0b79458..2ace524 100644
--- a/d3xp/Game_local.h
+++ b/d3xp/Game_local.h
@@ -29,13 +29,7 @@ If you have questions concerning this license or the applicable additional terms
 #ifndef __GAME_LOCAL_H__
 #define	__GAME_LOCAL_H__
 
-// default scripts
-#define SCRIPT_DEFAULTDEFS			"script/doom_defs.script"
-#define SCRIPT_DEFAULT				"script/doom_main.script"
-#define SCRIPT_DEFAULTFUNC			"doom_main"
-
-#define TIME_GROUP1		0
-#define TIME_GROUP2		1
+#include "GameBase.h"
 
 /*
 ===============================================================================
@@ -45,18 +39,6 @@ If you have questions concerning this license or the applicable additional terms
 ===============================================================================
 */
 
-#define LAGO_IMG_WIDTH 64
-#define LAGO_IMG_HEIGHT 64
-#define LAGO_WIDTH	64
-#define LAGO_HEIGHT	44
-#define LAGO_MATERIAL	"textures/sfx/lagometer"
-#define LAGO_IMAGE		"textures/sfx/lagometer.tga"
-
-// if set to 1 the server sends the client PVS with snapshots and the client compares against what it sees
-#ifndef ASYNC_WRITE_PVS
-	#define ASYNC_WRITE_PVS 0
-#endif
-
 #ifdef ID_DEBUG_UNINITIALIZED_MEMORY
 // This is real evil but allows the code to inspect arbitrary class variables.
 #define private		public
@@ -66,9 +48,6 @@ If you have questions concerning this license or the applicable additional terms
 extern idRenderWorld *				gameRenderWorld;
 extern idSoundWorld *				gameSoundWorld;
 
-// the "gameversion" client command will print this plus compile date
-#define	GAME_VERSION		"baseDOOM-1"
-
 // classes used by idGameLocal
 class idEntity;
 class idActor;
@@ -86,17 +65,8 @@ class idThread;
 class idEditEntities;
 class idLocationEntity;
 
-#define	MAX_CLIENTS				32
-#define	GENTITYNUM_BITS			12
-#define	MAX_GENTITIES			(1<<GENTITYNUM_BITS)
-#define	ENTITYNUM_NONE			(MAX_GENTITIES-1)
-#define	ENTITYNUM_WORLD			(MAX_GENTITIES-2)
-#define	ENTITYNUM_MAX_NORMAL	(MAX_GENTITIES-2)
-
 //============================================================================
 
-void gameError( const char *fmt, ... );
-
 #include "gamesys/Event.h"
 #include "gamesys/Class.h"
 #include "gamesys/SysCvar.h"
@@ -118,10 +88,6 @@ void gameError( const char *fmt, ... );
 
 //============================================================================
 
-#define MAX_GAME_MESSAGE_SIZE	8192
-#define MAX_ENTITY_STATE_SIZE	512
-#define ENTITY_PVS_SIZE			((MAX_GENTITIES+31)>>5)
-
 extern const int NUM_RENDER_PORTAL_BITS;
 
 typedef struct entityState_s {
@@ -739,18 +705,6 @@ typedef enum {
 	SND_CHANNEL_DAMAGE
 } gameSoundChannel_t;
 
-// content masks
-#define	MASK_ALL					(-1)
-#define	MASK_SOLID					(CONTENTS_SOLID)
-#define	MASK_MONSTERSOLID			(CONTENTS_SOLID|CONTENTS_MONSTERCLIP|CONTENTS_BODY)
-#define	MASK_PLAYERSOLID			(CONTENTS_SOLID|CONTENTS_PLAYERCLIP|CONTENTS_BODY)
-#define	MASK_DEADSOLID				(CONTENTS_SOLID|CONTENTS_PLAYERCLIP)
-#define	MASK_WATER					(CONTENTS_WATER)
-#define	MASK_OPAQUE					(CONTENTS_OPAQUE)
-#define	MASK_SHOT_RENDERMODEL		(CONTENTS_SOLID|CONTENTS_RENDERMODEL)
-#define	MASK_SHOT_BOUNDINGBOX		(CONTENTS_SOLID|CONTENTS_BODY)
-
-#define DEFAULT_GRAVITY_STRING		"1066"
 extern const float	DEFAULT_GRAVITY;
 extern const idVec3	DEFAULT_GRAVITY_VEC3;
 extern const int	CINEMATIC_SKIP_DELAY;
diff --git a/game/GameBase.h b/game/GameBase.h
new file mode 100644
index 0000000..5269b67
--- /dev/null
+++ b/game/GameBase.h
@@ -0,0 +1,78 @@
+/*
+===========================================================================
+
+Doom 3 GPL Source Code
+Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
+
+This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
+
+Doom 3 Source Code 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.
+
+Doom 3 Source Code 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#ifndef __GAMEBASE_H__
+#define	__GAMEBASE_H__
+
+// default scripts
+#define SCRIPT_DEFAULTDEFS		"script/doom_defs.script"
+#define SCRIPT_DEFAULT			"script/doom_main.script"
+#define SCRIPT_DEFAULTFUNC		"doom_main"
+
+#define LAGO_IMG_WIDTH			64
+#define LAGO_IMG_HEIGHT			64
+#define LAGO_WIDTH				64
+#define LAGO_HEIGHT				44
+#define LAGO_MATERIAL			"textures/sfx/lagometer"
+#define LAGO_IMAGE				"textures/sfx/lagometer.tga"
+
+// if set to 1 the server sends the client PVS with snapshots and the client compares against what it sees
+#ifndef ASYNC_WRITE_PVS
+	#define ASYNC_WRITE_PVS 0
+#endif
+
+// the "gameversion" client command will print this plus compile date
+#define	GAME_VERSION			"baseDOOM-1"
+
+#define	MAX_CLIENTS				32
+#define	GENTITYNUM_BITS			12
+#define	MAX_GENTITIES			(1<<GENTITYNUM_BITS)
+#define	ENTITYNUM_NONE			(MAX_GENTITIES-1)
+#define	ENTITYNUM_WORLD			(MAX_GENTITIES-2)
+#define	ENTITYNUM_MAX_NORMAL	(MAX_GENTITIES-2)
+
+#define MAX_GAME_MESSAGE_SIZE	8192
+#define MAX_ENTITY_STATE_SIZE	512
+#define ENTITY_PVS_SIZE			((MAX_GENTITIES+31)>>5)
+
+// content masks
+#define	MASK_ALL				(-1)
+#define	MASK_SOLID				(CONTENTS_SOLID)
+#define	MASK_MONSTERSOLID		(CONTENTS_SOLID|CONTENTS_MONSTERCLIP|CONTENTS_BODY)
+#define	MASK_PLAYERSOLID		(CONTENTS_SOLID|CONTENTS_PLAYERCLIP|CONTENTS_BODY)
+#define	MASK_DEADSOLID			(CONTENTS_SOLID|CONTENTS_PLAYERCLIP)
+#define	MASK_WATER				(CONTENTS_WATER)
+#define	MASK_OPAQUE				(CONTENTS_OPAQUE)
+#define	MASK_SHOT_RENDERMODEL	(CONTENTS_SOLID|CONTENTS_RENDERMODEL)
+#define	MASK_SHOT_BOUNDINGBOX	(CONTENTS_SOLID|CONTENTS_BODY)
+
+#define DEFAULT_GRAVITY_STRING	"1066"
+
+extern void gameError( const char *fmt, ... );
+
+#endif
diff --git a/game/Game_local.h b/game/Game_local.h
index 1ba48b9..72e1056 100644
--- a/game/Game_local.h
+++ b/game/Game_local.h
@@ -29,10 +29,8 @@ If you have questions concerning this license or the applicable additional terms
 #ifndef __GAME_LOCAL_H__
 #define	__GAME_LOCAL_H__
 
-// default scripts
-#define SCRIPT_DEFAULTDEFS			"script/doom_defs.script"
-#define SCRIPT_DEFAULT				"script/doom_main.script"
-#define SCRIPT_DEFAULTFUNC			"doom_main"
+#include "GameBase.h"
+
 /*
 ===============================================================================
 
@@ -41,18 +39,6 @@ If you have questions concerning this license or the applicable additional terms
 ===============================================================================
 */
 
-#define LAGO_IMG_WIDTH 64
-#define LAGO_IMG_HEIGHT 64
-#define LAGO_WIDTH	64
-#define LAGO_HEIGHT	44
-#define LAGO_MATERIAL	"textures/sfx/lagometer"
-#define LAGO_IMAGE		"textures/sfx/lagometer.tga"
-
-// if set to 1 the server sends the client PVS with snapshots and the client compares against what it sees
-#ifndef ASYNC_WRITE_PVS
-	#define ASYNC_WRITE_PVS 0
-#endif
-
 #ifdef ID_DEBUG_UNINITIALIZED_MEMORY
 // This is real evil but allows the code to inspect arbitrary class variables.
 #define private		public
@@ -62,9 +48,6 @@ If you have questions concerning this license or the applicable additional terms
 extern idRenderWorld *				gameRenderWorld;
 extern idSoundWorld *				gameSoundWorld;
 
-// the "gameversion" client command will print this plus compile date
-#define	GAME_VERSION		"baseDOOM-1"
-
 // classes used by idGameLocal
 class idEntity;
 class idActor;
@@ -82,17 +65,8 @@ class idThread;
 class idEditEntities;
 class idLocationEntity;
 
-#define	MAX_CLIENTS				32
-#define	GENTITYNUM_BITS			12
-#define	MAX_GENTITIES			(1<<GENTITYNUM_BITS)
-#define	ENTITYNUM_NONE			(MAX_GENTITIES-1)
-#define	ENTITYNUM_WORLD			(MAX_GENTITIES-2)
-#define	ENTITYNUM_MAX_NORMAL	(MAX_GENTITIES-2)
-
 //============================================================================
 
-void gameError( const char *fmt, ... );
-
 #include "gamesys/Event.h"
 #include "gamesys/Class.h"
 #include "gamesys/SysCvar.h"
@@ -114,10 +88,6 @@ void gameError( const char *fmt, ... );
 
 //============================================================================
 
-#define MAX_GAME_MESSAGE_SIZE	8192
-#define MAX_ENTITY_STATE_SIZE	512
-#define ENTITY_PVS_SIZE			((MAX_GENTITIES+31)>>5)
-
 extern const int NUM_RENDER_PORTAL_BITS;
 
 typedef struct entityState_s {
@@ -676,18 +646,6 @@ typedef enum {
 	SND_CHANNEL_DAMAGE
 } gameSoundChannel_t;
 
-// content masks
-#define	MASK_ALL					(-1)
-#define	MASK_SOLID					(CONTENTS_SOLID)
-#define	MASK_MONSTERSOLID			(CONTENTS_SOLID|CONTENTS_MONSTERCLIP|CONTENTS_BODY)
-#define	MASK_PLAYERSOLID			(CONTENTS_SOLID|CONTENTS_PLAYERCLIP|CONTENTS_BODY)
-#define	MASK_DEADSOLID				(CONTENTS_SOLID|CONTENTS_PLAYERCLIP)
-#define	MASK_WATER					(CONTENTS_WATER)
-#define	MASK_OPAQUE					(CONTENTS_OPAQUE)
-#define	MASK_SHOT_RENDERMODEL		(CONTENTS_SOLID|CONTENTS_RENDERMODEL)
-#define	MASK_SHOT_BOUNDINGBOX		(CONTENTS_SOLID|CONTENTS_BODY)
-
-#define DEFAULT_GRAVITY_STRING		"1066"
 extern const float	DEFAULT_GRAVITY;
 extern const idVec3	DEFAULT_GRAVITY_VEC3;
 extern const int	CINEMATIC_SKIP_DELAY;