Specimen is an iOS game of color recognition that takes place inside a petri dish. The surrounding canvas of your dish is a particular color and you pick the specimen that matches. Sounds simple but once you get into some more subtle palette changes, it gets quite challenging. I was fortunate enough to play a beta version and got quite hooked. Now it's officially available and I think everyone should dive in.

The team behind the game includes Erica Gorochow and Upright T-Rex Music - so there's the added bonus of supporting awesome people by playing a fun, free, game.