Call of Duty: Black Ops bears the series' standard superbly, delivering an engrossing campaign and exciting competitive multiplayer.

Mortal Kombat returns after a lengthy hiatus and puts players back into the Tournament for 2D fighting with gruesome combat.

Halo: Reach is the culmination of the superlative combat, sensational multiplayer, and seamless online integration that are the hallmarks of this superb series.

Portal 2 is an action shooter game from Valve Software that draws from the original formula of innovative gameplay, story, and music, which earned the original Portal more than 70 industry accolades.