Valve has announced the fifth set of games and applications to be approved through their Greenlight community review system.
The list includes Anodyne, the game that successfully embraced piracy to get noticed, and the wonderful iOS game Kingdom Rush. Receiver, Wolfire's intricate gun-detail FPS that I've been meaning to play, has also been approved. (A video demo of Receiver is up top. Doesn't that look cool?) There's also Surgeon Simulator 2013, which as Chris pointed out, is a mighty realistic heart surgery game.