diff --git a/00-default/games/gamescope.rules b/00-default/games/gamescope.rules
new file mode 100644
index 0000000..d853147
--- /dev/null
+++ b/00-default/games/gamescope.rules
@@ -0,0 +1 @@
+{"name": "gamescope", "type": "Game", "nice": -20}