Rainbow Six: Siege

This latest Tom Clancy themed game is an online FPS in which the tactical combat operators of the Rainbow program chase down a new global terrorist organization known as "The White Masks." Based on Ubisoft's AnvilNext game engine with large-scale destruction effects, Rainbow Six: Siege takes advantage of DirectX 11, but is only moderately taxing on your machine partly because of its near close-quarters-combat FPS setting and partly because it's trying to win over a massive user base from similar online shooters, like Counter Strike: Global Offensive.