diff --git a/gamedata/core.games/common.games.txt b/gamedata/core.games/common.games.txt
index ee1bf1ae5..62cee74a1 100644
--- a/gamedata/core.games/common.games.txt
+++ b/gamedata/core.games/common.games.txt
@@ -163,6 +163,7 @@
 			"game"					"FortressForever"
 			"game"					"zps"
 			"game"					"gesource"
+			"game"					"obsidian"
 		}
 		
 		"Keys"