DOOM 3 is a single-player action game set after a demonic invasion overwhelms the Union Aerospace Corporation’s Mars Research Facility. With the facility plunged into chaos, you take the role of one of the few survivors and fight through a dark, dangerous route toward hell and back. The immediate goal is survival against the monsters that have overrun the base.
Combat draws on a practical arsenal that includes a pistol, chainsaw and grenades, with additional weapons also available. The premise puts that firepower against a horde of evil creatures in the confined, crisis-struck setting of a research facility. Rather than presenting a battlefield at peace, the game frames each encounter as a struggle to endure the invasion and escape its devastation.
Its distinctive design centers on the contrast between a scientific outpost on Mars and the supernatural catastrophe consuming it. Darkness and danger are part of the stated atmosphere, while the player’s progress is defined by fighting through hostile surroundings. DOOM 3 also lists multiplayer among its categories, alongside single-player, though its central premise is the lone survivor’s battle through the facility.