Major Nelson has revealed what the Xbox 360 will have in store for gamers at PAX Prime 2012. Halo 4, Forza Horizon, and Gears of War: Judgment will be the exclusives headlining at the booth, as well as XBLA titles such as State of Decay and their first free-to-play title Happy Wars.

Some of the biggest multiplatform releases will also appear at Xbox booth #412 and of course everything is playable.

The following is directly taken from Major Nelson’s blog:

Halo 4
Get up close and personal with Halo 4’s fast-paced and addictive multiplayer!  Everyday we’ll rotate through an exclusive selection of maps, game modes, and never-before-seen content that we know you’ll love to get hands-on time with!  Hone your Halo skills, play with (or against) your friends, and see what innovations in store for you when Halo 4’s launches on November 6th.  In the meantime, go behind the scenes to check out how this masterpiece was made in The Magic of Halo 4.

Forza Horizon
Come get hands-on with the “best racing game” of E3 according to Electronic Gaming Magazine. In Forza Horizon, you get the freedom of the open road, high intensity action and moment to moment gameplay surrounded by a festival atmosphere, all set to the hottest music curated by one of the world’s biggest DJ’s. Forza Horizon is speed, style and parties on the open road, and can be yours come October 23rd.

Gears of War: Judgment **Updated**
Debuting and playable this week at PAX Prime in Seattle is the new multiplayer experience Free-For-All, recently revealed in a cover story in OXM. FFA throws team tactics out the window as each player battles for survival and kills versus all other players. This highly anticipated prequel to the Gears of War saga hits March 19, 2013. Not excited yet? Revisit our E3 trailer, start up your lancer and we’ll see you at PAX Prime.

Fable: The Journey
All the power and the magic are in your hands with Fable: The Journey, launching October 9th. Come see what all the fuss is about, from the deep storyline to the heart-pounding action all set in the picturesque world of Albion that fans have come to know and love in the “Fable” franchise. Some lucky folks will walk off not only blow away by the fun to be had with Fable: The Journey, but also with a token for a Fable avatar t-shirt! Kill time between now and PAX by checking out the newest video documentary called “Telling the Tale.”

Xbox LIVE Arcade
We’ll also have the newest Xbox LIVE Arcade games from Microsoft Studios. Be sure to check out the open world zombie-survival game, State of Decay; free-to-play title, Happy Wars; follow-up to the smash success, Crash Course 2; and multiplayer racing sensation, Avatar Motocross Madness.

Resident Evil 6
Come play the latest Resident Evil 6 demo at PAX 2012. Featuring 3 separate scenarios to choose from you can try to escape the infected Ivy University campus as Leon S. Kennedy, tackle a building size B.O.W. with Chris Redfield, or clear out the J’avo infested streets of Lanshiang, China as Jake Muller.  Blending action and survival horror, Resident Evil 6 promises to be the dramatic horror experience of 2012.

Tomb Raider
Lara Croft has already proven herself to be a survivor after escaping a violent shipwreck onto a mysterious island and a disorienting underground encounter where a tribe of island inhabitants tried to capture her. Get hands-on with Tomb Raider as Lara takes her first steps on the island, discovers a lifeline in the form of her iconic bow, and sets out to find her shipwrecked friends.

FIFA Soccer 13
Winner of the prestigious E3 Game Critics award for “Best Sports Game”, FIFA Soccer 13 captures the unpredictability of real-world football, ensuring no two matches play the same. The game features breakthrough gameplay innovations that create a true battle for possession across the entire pitch and deliver freedom and creativity in attack, as well as engaging online features and live services that connect fans to the heartbeat of the sport—and to each other—through EA SPORTS Football Club. FIFA Soccer 13 is Football’s Social Network, where fans connect, compete and share with millions of others around the world.

Dream.Build.Play 2012 Challenge
Dream.Build.Play is Microsoft’s global competition that challenges independent game developers to create new and innovative games for Xbox 360 and new this year, games for Windows Phone.  With over 350 entries from 42 countries, this year’s competition was tougher than ever.  Stop by the Dream.Build.Play station to find out who took home the top honors as we showcase the top four Xbox 360 and top four Windows Phone winners.  Winners of the Dream.Build.Play competition will share $112,500 in cash prizes and have the opportunity to become part of the Registered Developer Program (RDP).