Fans familiar with the Warhammer 40,000 universe are incredibly excited about THQ and Relic Entertainment's Space Marine for the Xbox 360, PC, and PlayStation 3. Players not familiar with the universe have no idea what's going on. This video fixes that.

Kotaku employs gamers and geeks from all walks of fandom, and sometimes it's hard to write without assuming that everyone else loves the same things we do. So when we write about a game like Relic's Warhammer 40,000: Space Marine, it's easy for us to gloss over small details, like where the game takes place, what the conflict is about, who the major players are.

Thankfully Relic and THQ are here to fill you in, so we don't have to state at you, mouths agape with disbelief, before explaining it ourselves.