Here's a list of all the app ideas which have been tagged with the game tag:

Cover shot
2 votes
An application that would help you tune the piano.
- jdoe - over a month ago
1 feature, 1 mockup
Cover shot
1 vote
This would be an awesome shoot-em-up app with ships zipping in and out of hyperspace
- bob87 - over a month ago
2 features, 2 mockups