THQ has announced that a playable demo of Warhammer 40,000: Space Marine, an action-RPG developed by Relic Entertainment, is now available via Xbox LIVE and Steam - the PSN demo will launch tomorrow. The Space Marine demo features two very different areas of the game. The first pits the player against an Ork horde outside the gates of a munitions factory. Armed with six devastating weapons, including the iconic bolter and lethal chainsword, the player will get to experience Space Marine's seamless mix of melee and ranged combat first hand as they take on the rampaging invaders. The second area gives players a taste of the exhilarating Jump Pack sequences where the game's hero - Captain Titus - takes to the skies to rain death from above. Warhammer 40,000: Space Marine is due to be available on September 6th, for PC, Xbox 360 and PS3. Two new videos have been added in our download section.