Hmm, there haven't really been games I've been disappointed with. The games I tend to like and buy turn out to be good, or great games. The few games I bought that were, were the few I didn't have interest, but still tried due to hype from the general community, or to test out a game. These are very rare for me though.
Dance my pretties!
The Official Art Thread - The Official Manga Thread - The Official Starbound Thread