diff --git a/code/qcommon/files.c b/code/qcommon/files.c
index e4d22d37..1c1c593c 100644
--- a/code/qcommon/files.c
+++ b/code/qcommon/files.c
@@ -251,6 +251,7 @@ static	cvar_t		*fs_homepath;
 static  cvar_t          *fs_apppath;
 #endif
 static	cvar_t		*fs_steampath;
+static	cvar_t		*fs_gogpath;
 
 static	cvar_t		*fs_basepath;
 static	cvar_t		*fs_basegame;
@@ -750,7 +751,7 @@ long FS_SV_FOpenFileRead(const char *filename, fileHandle_t *fp)
 			fsh[f].handleSync = qfalse;
 		}
 
-		// Check fs_steampath too
+		// Check fs_steampath
 		if (!fsh[f].handleFiles.file.o && fs_steampath->string[0])
 		{
 			ospath = FS_BuildOSPath( fs_steampath->string, filename, "" );
@@ -765,6 +766,21 @@ long FS_SV_FOpenFileRead(const char *filename, fileHandle_t *fp)
 			fsh[f].handleSync = qfalse;
 		}
 
+		// Check fs_gogpath
+		if (!fsh[f].handleFiles.file.o && fs_gogpath->string[0])
+		{
+			ospath = FS_BuildOSPath( fs_gogpath->string, filename, "" );
+			ospath[strlen(ospath)-1] = '\0';
+
+			if ( fs_debug->integer )
+			{
+				Com_Printf( "FS_SV_FOpenFileRead (fs_gogpath): %s\n", ospath );
+			}
+
+			fsh[f].handleFiles.file.o = Sys_FOpen( ospath, "rb" );
+			fsh[f].handleSync = qfalse;
+		}
+
 		if ( !fsh[f].handleFiles.file.o )
 		{
 			f = 0;
@@ -2510,6 +2526,8 @@ int	FS_GetModList( char *listbuf, int bufsize ) {
 	char **pFiles1 = NULL;
 	char **pFiles2 = NULL;
 	char **pFiles3 = NULL;
+	char **pFiles4 = NULL;
+	char **pFiles5 = NULL;
 	qboolean bDrop = qfalse;
 
 	*listbuf = 0;
@@ -2518,10 +2536,12 @@ int	FS_GetModList( char *listbuf, int bufsize ) {
 	pFiles0 = Sys_ListFiles( fs_homepath->string, NULL, NULL, &dummy, qtrue );
 	pFiles1 = Sys_ListFiles( fs_basepath->string, NULL, NULL, &dummy, qtrue );
 	pFiles2 = Sys_ListFiles( fs_steampath->string, NULL, NULL, &dummy, qtrue );
-	// we searched for mods in the three paths
+	pFiles3 = Sys_ListFiles( fs_gogpath->string, NULL, NULL, &dummy, qtrue );
+	// we searched for mods in the four paths
 	// it is likely that we have duplicate names now, which we will cleanup below
-	pFiles3 = Sys_ConcatenateFileLists( pFiles0, pFiles1 );
-	pFiles = Sys_ConcatenateFileLists( pFiles2, pFiles3 );
+	pFiles4 = Sys_ConcatenateFileLists( pFiles0, pFiles1 );
+	pFiles5 = Sys_ConcatenateFileLists( pFiles2, pFiles3 );
+	pFiles = Sys_ConcatenateFileLists( pFiles4, pFiles5 );
 
 	nPotential = Sys_CountFileList(pFiles);
 
@@ -2573,6 +2593,15 @@ int	FS_GetModList( char *listbuf, int bufsize ) {
 				Sys_FreeFileList( pPaks );
 			}
 
+			/* try on gog path */
+			if ( nPaks <= 0 )
+			{
+				path = FS_BuildOSPath( fs_gogpath->string, name, "" );
+				nPaks = 0;
+				pPaks = Sys_ListFiles( path, ".pk3", NULL, &nPaks, qfalse );
+				Sys_FreeFileList( pPaks );
+			}
+
 			if (nPaks > 0) {
 				nLen = strlen(name) + 1;
 				// nLen is the length of the mod path
@@ -3301,6 +3330,10 @@ static void FS_Startup( const char *gameName )
 	fs_gamedirvar = Cvar_Get ("fs_game", "", CVAR_INIT|CVAR_SYSTEMINFO );
 
 	// add search path elements in reverse priority order
+	fs_gogpath = Cvar_Get ("fs_gogpath", Sys_GogPath(), CVAR_INIT|CVAR_PROTECTED );
+	if (fs_gogpath->string[0]) {
+		FS_AddGameDirectory( fs_gogpath->string, gameName );
+	}
 	fs_steampath = Cvar_Get ("fs_steampath", Sys_SteamPath(), CVAR_INIT|CVAR_PROTECTED );
 	if (fs_steampath->string[0]) {
 		FS_AddGameDirectory( fs_steampath->string, gameName );
@@ -3325,6 +3358,9 @@ static void FS_Startup( const char *gameName )
 
 	// check for additional base game so mods can be based upon other mods
 	if ( fs_basegame->string[0] && Q_stricmp( fs_basegame->string, gameName ) ) {
+		if (fs_gogpath->string[0]) {
+			FS_AddGameDirectory(fs_gogpath->string, fs_basegame->string);
+		}
 		if (fs_steampath->string[0]) {
 			FS_AddGameDirectory(fs_steampath->string, fs_basegame->string);
 		}
@@ -3338,6 +3374,9 @@ static void FS_Startup( const char *gameName )
 
 	// check for additional game folder for mods
 	if ( fs_gamedirvar->string[0] && Q_stricmp( fs_gamedirvar->string, gameName ) ) {
+		if (fs_gogpath->string[0]) {
+			FS_AddGameDirectory(fs_gogpath->string, fs_gamedirvar->string);
+		}
 		if (fs_steampath->string[0]) {
 			FS_AddGameDirectory(fs_steampath->string, fs_gamedirvar->string);
 		}
diff --git a/code/qcommon/q_shared.h b/code/qcommon/q_shared.h
index 791a5abe..9f63f928 100644
--- a/code/qcommon/q_shared.h
+++ b/code/qcommon/q_shared.h
@@ -50,6 +50,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   #define HOMEPATH_NAME_MACOSX		HOMEPATH_NAME_WIN
   #define STEAMPATH_NAME			"Quake 3 Arena"
   #define STEAMPATH_APPID			"2200"
+  #define GOGPATH_ID				"1441704920"
   #define GAMENAME_FOR_MASTER		"Quake3Arena"
   #define CINEMATICS_LOGO		"idlogo.RoQ"
   #define CINEMATICS_INTRO		"intro.RoQ"
diff --git a/code/qcommon/qcommon.h b/code/qcommon/qcommon.h
index feeca186..996c3106 100644
--- a/code/qcommon/qcommon.h
+++ b/code/qcommon/qcommon.h
@@ -1108,6 +1108,7 @@ char	*Sys_Cwd( void );
 void	Sys_SetDefaultInstallPath(const char *path);
 char	*Sys_DefaultInstallPath(void);
 char	*Sys_SteamPath(void);
+char	*Sys_GogPath(void);
 
 #ifdef __APPLE__
 char    *Sys_DefaultAppPath(void);
diff --git a/code/sys/sys_unix.c b/code/sys/sys_unix.c
index 0e9f99bf..b6f33b1f 100644
--- a/code/sys/sys_unix.c
+++ b/code/sys/sys_unix.c
@@ -47,6 +47,9 @@ static char homePath[ MAX_OSPATH ] = { 0 };
 // Used to store the Steam Quake 3 installation path
 static char steamPath[ MAX_OSPATH ] = { 0 };
 
+// Used to store the GOG Quake 3 installation path
+static char gogPath[ MAX_OSPATH ] = { 0 };
+
 /*
 ==================
 Sys_DefaultHomePath
@@ -106,6 +109,17 @@ char *Sys_SteamPath( void )
 	return steamPath;
 }
 
+/*
+================
+Sys_GogPath
+================
+*/
+char *Sys_GogPath( void )
+{
+	// GOG also doesn't let you install Quake 3 on Mac/Linux
+	return gogPath;
+}
+
 /*
 ================
 Sys_Milliseconds
diff --git a/code/sys/sys_win32.c b/code/sys/sys_win32.c
index 6bf0828c..0faec19a 100644
--- a/code/sys/sys_win32.c
+++ b/code/sys/sys_win32.c
@@ -45,6 +45,9 @@ static char homePath[ MAX_OSPATH ] = { 0 };
 // Used to store the Steam Quake 3 installation path
 static char steamPath[ MAX_OSPATH ] = { 0 };
 
+// Used to store the GOG Quake 3 installation path
+static char gogPath[ MAX_OSPATH ] = { 0 };
+
 #ifndef DEDICATED
 static UINT timerResolution = 0;
 #endif
@@ -183,6 +186,38 @@ char *Sys_SteamPath( void )
 	return steamPath;
 }
 
+/*
+================
+Sys_GogPath
+================
+*/
+char *Sys_GogPath( void )
+{
+#ifdef GOGPATH_ID
+	HKEY gogRegKey;
+	DWORD pathLen = MAX_OSPATH;
+
+	if (!gogPath[0] && !RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\GOG.com\\Games\\" GOGPATH_ID, 0, KEY_QUERY_VALUE | KEY_WOW64_32KEY, &gogRegKey))
+	{
+		pathLen = MAX_OSPATH;
+		if (RegQueryValueEx(gogRegKey, "PATH", NULL, NULL, (LPBYTE)gogPath, &pathLen))
+			gogPath[0] = '\0';
+
+		RegCloseKey(gogRegKey);
+	}
+
+	if (gogPath[0])
+	{
+		if (pathLen == MAX_OSPATH)
+			pathLen--;
+
+		gogPath[pathLen] = '\0';
+	}
+#endif
+
+	return gogPath;
+}
+
 /*
 ================
 Sys_Milliseconds