Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.

Hedgewars - Hedgewars is a Free to play, Single-player and Turn-based Strategy video game developed by Hedgewars Development Team.

Quake - Quake is a series of first-person shooter video games released by id Software.

Counter-Strike 2D - Top-Down Multiplayer Shooter

Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.

Ironfell - Ironfell is a time travel themed massive multi-player online real time strategy game.