Doom VS Half-Life 2

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

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

Killzone: Shadow Fall - Killzone: Shadow Fall is offering thrilling gameplay, in which you, as the protagonist, need to complete a variety of challenging missions.

DotA 2 - Dota 2 is a Free-to-play, Action-Adventure, Multiplayer Online Battle Arena, Single and Multiplayer video game created and published by Valve Corporation.

BioShock Infinite - BioShock Infinite is an Engaging, Action-Adventure, FPS (First-person Shooting), Fantasy, Exploration, and Single-player video game created by Irrational Games and published by 2k Games.

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