For me it has to be S.T.A.L.K.E.R: Shadows of Chernobyl. Even though people I know have no idea what the game is. XD
Hm... maybe Halo! As well as Overwatch (does that count as a video game?), and the Last of Us, although I've never played it... but I really want to ;w;
I'd have to go with Cytus. Despite being a smartphone game, I enjoy the fast paced lv. 9 difficulty music and the insane amount of dexterity required to make a perfect combo.