Quantum Theory demo on Xbox Live 'later this month'

While PS3 owners are already enjoying the demo for Tecmo Koei's Quantum Theory, it looks like the denizens of Xbox Live will have to wait a little longer. Unfortunately, we don't have a solid date for the demo's Xbox debut, with an official announcement saying simply that it will arrive "later this month."

Don't worry about it too much though, we're sure you'll find something to keep you busy for the rest of the month.
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PS3 Players Can Get Their First Taste of Fighting the Diablosis in This New Fantasy Action Shooter

Tecmo Koei America today announced that a demo for the upcoming fantasy, third-person/action shooter Quantum Theory is now available for download on the PS3's PlayStation Network. Xbox 360 users can expect the demo to hit Xbox LIVE later this month.

In the demo, players will control Syd, a hardened warrior with a focused vendetta, as he teams up with the mysterious Filena, an ally with a unique fighting style and technique. Players will be introduced to a variety of unique weapons and enemies as they begin their first strikes in the battle against the diablosis, a black material that infects anything it comes into contact with. As the diablosis taints and corrupts soldiers and even the very environment it touches, Syd and Filena will need to stay sharp to survive.

Quantum Theory is set to hit nationwide retailers for both PS3 and Xbox 360 starting on September 28 for $59.99. The game is rated ESRB "M" for mature. For more information, please visit http://www.quantumtheorygame.com/

This article was originally published on Joystiq.