Another great Oculus Rift game, "Don't Let Go!". It's less of a game, and more of a interactive video, but it's very interesting. The whole point of the game is to, as the title suggest, not let go. You must hold the. CTRL buttons, while things like flys, spiders, and even dinosaurs try do distract you. Doesn't sound very bad, but when you have the Oculus on, and headphones... It's pretty scary.
The game ends after you past the challenges. Pretty short, but free and fun. Go download it!