Microsoft is blowing out PAX Prime with playable demos of Halo 4 multiplayer, Forza Horizon, Resident Evil 6 and Tomb Raider, along with a bunch of previews for XBLA, Dream Build Play and Windows 8 games. Microsoft will also have a big Gears of War: Judgement surprise, which Major Nelson promises to reveal tomorrow, and features on FIFA 13 and Fable: The Journey.

The XBLA games gracing PAX with their presence are State of Decay, Crash Course 2, Avatar Motocross Madness and Happy Wars, XBLA's first ever free-to-play title. Microsoft will host the 2012 Dream Build Play winners in its booth (#412), with the four Xbox 360 winners and top four from the Windows Phone division on display.