2. Counter-Strike: Global Offensive
Counter-Strike: Global Offensive, or CS:GO for short, serves as the true successor to Counter-Strike 1.6 and improves upon the pioneering gameplay of the original team-based shooter.
CS:GO offers updated versions of classic maps in addition to new gameplay modes, weapons, characters, and maps. Players can now team up or do battle against each other with a newly developed matchmaking mode that pits players of similar skill level against each other, so newcomers won't be eaten alive by pros.
CS:GO will be released on the PC, Mac, and both the Xbox 360 and PlayStation 3 consoles.