The game consists of controlling a Marine, who is routine in a station in Phobos, one of the moons of Mars. In a second, the gates of Hell are left open, leaving an endless number of demons, unclean spirits, zombies, infesting the base in a matter of hours. As the protagonist, you are the only surviving human being in the station and your mission is to be able to get out alive from level to level; very much like Wolfenstein 3D, which was Id Software's first FPS; however, the challenge here is even greater.
It is worth mentioning that Doom popularized most aspects of first-person shooter games, (also known as FPS), and there are many who mention that it was he who created the platform that the other games of this genre should follow, in addition that in terms of creativity, allowed the expansions created by the user, WADs, to be introduced into the medium.
