Warhammer 40,000 Space Marine is a third-person shooter game developed by Relic Entertainment and published by Sega. The game takes place in Games Workshop's Warhammer 40,000 universe and features the Ultramarines chapter. In the grim darkness of the far future, the Imperial planet Graia is under seige by Orks. The Astra Militarum forces are barely holding together if it were not for their leader 2nd L.T Mira, as Ultramarine captian Titus comes to save the Titans and the planet, he unleashes an even greater threat.

• Warhammer 40,000 Space Marine