: The base's lead scientist, Dr. Malcolm Betruger, pushes experimental technology beyond its limits, allowing demonic forces to invade the base.

If you are looking to download the game, it is widely available on modern platforms:

: The game is often available as part of backward compatibility or specialized "Slayers Collections."

: According to Wikipedia , your mission is to fight through the demon-infested base, find a way to close the gateway to Hell, and prevent the invasion from reaching Earth. Gameplay & Tone

Unlike the fast-paced action of earlier titles, DOOM 3 focuses on a atmosphere. You'll spend much of your time managing your limited resources, utilizing your flashlight to spot enemies in the shadows, and uncovering the "PDAs" of fallen staff to piece together the facility's dark secrets. Where to Play

In , you take on the role of a nameless Space Marine assigned to the Union Aerospace Corporation (UAC) research facility on Mars in the year 2145. What starts as a routine security detail quickly turns into a nightmare when the facility's teleportation experiments accidentally open a portal to Hell .