Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Crossout - Crossout is an Entertaining, Action-Adventure, Massively Multiplayer Online (MMO), Vehicular Combat, Exploration and Combat video game developed by Targem Games and published by Gaijin Entertainment.
Quake - Quake is a series of first-person shooter video games released by id Software.
World of Tanks - World of Tanks is an Addictive, Action, Massively Multiplayer Online (MMO), Browser-based, and Tank Combat video game developed and published by Wargaming.
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
BotBoxer - A first ever robotic punching bag with computer vision