Warhammer 40,000

There is no time for peace.

No respite. No forgiveness. There is only WAR. In the nightmare future of the 41st Millennium, Mankind teeters upon the brink of destruction. The galaxy-spanning Imperium of Man is beset on all sides by ravening aliens and threatened from within by Warp-spawned entities and heretical plots. Only the strength of the immortal Emperor of Terra stands between humanity and its annihilation, and in his name, countless warriors and agents do battle against the encroaching darkness. Foremost amongst them stand the Space Marines, the ultimate protectors of Mankind. Across airless moons, within the depths of dark, twisted hive worlds and even in the immaterial realm of Warp space, battles rage that will shape the future of the galaxy forever. It is a universe that you can enter today, if you dare. But remember that this is a dark and terrible era, and there is no peace amongst the stars...