Portal Pinball - Guide Chell and Wheatley through test chambers by navigating portals, using aerial faith plates, defeating turrets and facing other obstacles.
Flying 2048 - Flying 2048... quite possibly the most "addicting" game in the world.
PinOut - PinOut is an Arcade, Physics-based and Single-player video game created by Mediocre.
Floculus Bird - Floculus Bird is a remake of Flappy Bird in 3D with Oculus Rift support. I made it in about five hours for Flappy Jam, a game jam organized by the indie community to show support for Dong Nguyen.
Marvel Pinball - Use your pinball wizardry to help Marvel Universe heroes rid the landscape of notorious Super Villains.
Flappux - HTML based clone of Flappy Birds that is unapologetically free software.