Batman : Arkham City - Gameplay Trailer | HD 720p

Game - Batman : Arkham City
Publisher - Warner Bros Games
Developer -Rocksteady Studios
Platform - PC, 360, PS3
Release Date - 18 October 2011

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

Dirt 3 - Mini Gymkhana Trailer | HD 720p

Game - Dirt 3
Publisher - Codemasters
Developer - Codemasters Southampton
Engine - EGO
Platform - PC, 360, PS3
Release Date - 24 May 2011

Source
http://www.youtube.com/user/dirt3game

Dirt 3 - Monte Carlo Track Pack Trailer | HD 720p

Game - Dirt 3
Publisher - Codemasters
Developer - Codemasters Southampton
Engine - EGO
Platform - PC, 360, PS3
Release Date - 24 May 2011

Source
http://www.youtube.com/user/dirt3game

FireFall - Developer Diary 3 | HD 720p

Game - FireFall
Developer - Red 5 Studios
Platform - PC
Release Date - TBA 2011

Source
http://www.youtube.com/user/r5studios

FireFall - Developer Diary 2 | HD 720p

Game - FireFall
Developer - Red 5 Studios
Platform - PC
Release Date - TBA 2011

Source

http://www.youtube.com/user/r5studios

Rocksmith - Guitar Baby Trailer | HD 720p

Game - Rocksmith
Publisher - Ubisoft
Platform - PC, 360, PS3
Release Date - 11 October 2011

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