Assassin’s Creed - Assassin’s Creed is a best long running and extremely popular series of open world video games which mixture of action, adventure and more importantly stealth into a single experience.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Dishonored 2 - Dishonored 2 is an Action-Adventure, Stealth, First-person, Exploration, Combat and Single-player video game developed by Arkane Studios and published by Bethesda Software.
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
Prototype 2 - Prototype 2 provides a combination of open world gameplay and also action adventure using a fun (and powerful) turn.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.