Doom 3: Maelstrom

In the year 2145...after disobeying a direct order, former special ops Marine Lieutenant John Kane found himself stripped of his rank and reassigned to the "U.S. Space Marines" -- the private army of the Union Aerospace Corporation. Now little more than a glorified security guard, Kane reluctantly accepts his fate on Mars City, the environmental community/lab center on the legendary red planet.

But Kane could never have imagined the unspeakable horrors that awaited him there -- nightmarish...