Doom 3

Screenshots:

Background:
You are a marine posted at the Union Aerospace Corporation Mars Base for security ...

You are soon one of the only human survivors. The Aerospace Corportation has been doing high study research into teleportation and something has gone wrong somewhere along the line with their scientific tampering. With hellish demons, zombies and even fireball throwing imps roaming wildly around the base. Dangerous Dr. Betruger has opened up a portal to a hell like dimension with the intent of transporting them to Earth. Go through hell and back because you are the only one who can stop it.

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