Killzone 3 - Multiplayer Experience Trailer | HD 1080p

Game - Killzone 3
Publisher - Sony Computer Entertainment
Developer - Guerrilla Games
Platform - PS3
Released Date - 22 February 2011

Source
http://www.youtube.com/user/PlayStation

Diablo III - First 20 Minutes Gameplay | HD 720p

Game - Diablo III
Publisher - Blizzard Entertaiment
Developer - Blizzard
Platform - PC, Mac
Release Date - TBA 2012

Source
http://www.youtube.com/user/diablo