Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
TheoTown - A City simulation game with great nostalgic graphics.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
SimCity BuildIt - Build, craft, and control! SimCity BuildIt is an all-new SimCity game designed just for mobile.
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
Micropolis - Micropolis is the open source version of SimCity Classic from Maxis, developed by Will Wright and Don Hopkins.