halflife 3. or a FEAR remake. but these are just make believe. for real existing games i would say... halflife 1 and 2, halo CE, and pong, the great granddaddy of all video games. for multiplayer games, unreal tournament and halo (all of them).
I would love to see new unreal games. Unreal single player game and halflife we?e the first games i played when i started gaming in 1999. Ive played both unreal 1 and unreal 2, and i played ureal tournament1999 and 2004 multiplayer for years.in my opinion unreal tournament was the best multiplayer shooter ever made.