You've come here for a reason. The Union Aerospace Corporation's massive research facility on Mars is overwhelmed by fierce and powerful demons, and only one person stands between their world and ours. As the lone DOOM Marine, you've been activated to do one thing: kill them all.

How long is Doom?
When focusing on the main objectives, Doom is about 11½ Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 27 Hours to obtain 100% completion.