There have been many [game-rec] questions being asked recently, despite them being defined as out of our scope. I don't know what the Stack Exchange engine is capable of, but would it somehow be possible for a little dialogue to pop up stating something along the lines of...
warning: game-rec questions are likely to be closed
...perhaps with a link to the relevant meta discussion? I don't know how effective this would be, but I think it would reduce some of the [game-rec]s still being asked.
(Just brainstorming, as I find it curious how people are still asking game-rec questions.)