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You begin with nothing but a pistol and your bare hands, but as you progress, other weapons will be unlocked. Your health meter will decrease depending on how hard you are shot and especially where you are hit. You play as a marine guy that finds himself on Phobos, where you have to defeat all the demons and other dreadful enemies, to prevent them attacking the Earth.
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This fact led to anomalies, that created a gateway straight to Hell. The storyline has a horror style: experiments with teleportation between the two moons of Mars, Phobos and Deimos, were launched by The Union Aerospace Corporation. It is also a revolutionary game that marked the adolescence of the players and the genre enthusiasts. DOOM is a RPG science-fiction action game, with a first-person perspective, being the first of the franchise.
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