S.T.A.L.K.E.R. - S.
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.
Pathologic 2 - Pathologic 2 is an Atmospheric, Horror, and Single-player video game brought to you by tiny Build.
The Saboteur - The Saboteur mixes in the regular setting that many open world action adventures travel to simply by using a World War II theme instead.
Darkwood - Darkwood created by Acid Wizard Studio offers a wonderful combination of Open World, Action-Adventure and Horror-Survival, RPG and Roguelike aesthetics.
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.