Game Room games I own
I think Game Room is a good service that does a lot of things right. It's easy to look at it and say there are a lot of bad games, but at this point they have over 100 releases, so there's bound to be something you've heard of and liked, and probably something you've never heard of and end up liking. Three bucks is kind of steep for some games (isn't it funny that $3 is now considered an investment worth contemplating over?), but the online leaderboards, challenge opportunities, and medals to earn (if you're a dork like me) justify the price.
Here are the games I own, in the order I bought them. Hit me up on Xbox Live (Gakon) to spend tokens or send challenges or do whatever suits you.