The Space Marine Website has news that Warhammer 40,000: Space Marine is now available for Windows and consoles, offering a third-person action/RPG set in the Warhammer future. Here's word on the game and the co-op update expected in about a month:

Combining intense melee and ranged combat, Space Marine puts players into the boots of one of humanity’s elite soldiers, genetically engineered and equipped with state of the art weapons and armor. Players are dropped right into the action as they battle to defend an Imperial Forge World, a planet sized factory, from an invasion by the savage and brutal Orks, using the most devastating weaponry mankind has at its disposal.

Space Marine also features 8 vs 8 class-based multiplayer where players take on the role of either Space Marine or Chaos Space Marine in a battle to the death. Players can choose the balanced Tactical and Chaos Space Marine, the heavy weapons focused Devastator and Havoc or the jump pack equipped melee specialist Assault Marine and Raptor.

A free downloadable Co-operative gameplay mode called Exterminatus will also be made available to all players in early October. This mode pits a team of four Space Marine players against numerous AI controlled enemies in a fight to survive. Featuring dynamic challenges and global leaderboards, Space Marine’s co-op mode will keep players engaged for months to come.