Way back when there was several Doom games. The first Ultimate Doom aka Doom 1 story goes like this...
Quote:
You're a marine, one of Earth's toughest, hardened in combat and trained for action. Three years ago you assaulted a superior officer for ordering his soldiers to fire upon civilians. He and his body cast were shipped to Pearl Harbor, while you were transferred to Mars, home of the Union Aerospace Corporation. The UAC is a multi-planetary conglomerate with radioactive waste facilities on Mars and its two moons, Phobos and Deimos. With no action for fifty million miles, your day consisted of suckin' dust and watchin' restricted flicks in the rec room. For the last four years the military, UAC's biggest supplier, has used the remote facilities on Phobos and Deimos to conduct various secret projects, including research on inter-dimensional space travel. So far they have been able to open gateways between Phobos and Deimos, throwing a few gadgets into one and watching them come out the other. Recently however, the Gateways have grown dangerously unstable. Military "volunteers" entering them have either disappeared or been stricken with a strange form of insanitybabbling vulgarities, bludgeoning anything that breathes, and finally suffering an untimely death of full-body explosion. Matching heads with torsos to send home to the folks became a full-time job. Latest military reports state that the research is suffering a small set-back, but everything is under control. A few hours ago, Mars received a garbled message from Phobos. "We require immediate military support. Something fraggin' evil is coming out of the Gateways! Computer systems have gone
berserk!" The rest was incoherent. Soon afterwards, Deimos simply vanished from the sky. Since then, attempts to establish contact with either moon have been unsuccessful. You and your buddies, the only combat troop for fifty million miles were sent up pronto to Phobos. You were ordered to secure the perimeter of the base while the rest of the team went inside. For several hours, your radio picked up the sounds of combat: guns firing, men yelling orders, screams, bones cracking, then finally, silence. Seems your buddies are dead.
Then Doom II followed shortly after...
Quote:
Back at last. After days of hard fighting in space, you've returned home on well-earned leave. You're one of Earth's crack soldiers, hard-bitten, tough, and heavily-armed. When the alien invasion struck Mars, you were the first on the scene. By killing, killing, and illing, you won. You stopped the invasion, saved Mars base, and became a war hero. What they don't talk about so much is that you were the only survivor. k But that's all behind you now. You've quit the military, and are heading home. Your drop pod lands with a crunch. You open 'er up, and look out. Damn! The city ahead is on fire. What the devil is going on? You stagger forward, clutching at your sidearm. Packs of refugees are fleeing the flaming metropolis. A band of them shriek in terror. You squint. What's that? Someone is attacking the refugees. You rush up and blast away, killing the troublemaker. It looks like a human, but something's wrong. His mouth is filled with half-chewed flesh, and he's all messed up, like a zombie from a bad horror movie. Hell, not again! You can feel it. It's all starting again, just like on Mars. First, people are taken over, turned into cannibal Things. Then the real horror starts, the deformed monstrosities from Outside. But now it's on Earth. It turns out that the invaders are all over. Monsters range from Tokyo to Timbuktu, from Stockholm to Scranton. Billions are dead. Some people have been transformed into flesh-eating mutants, but a few, a very few, are still alive and fully human. The wise men of humanity have evolved a plan to save what's left of the human race. They have built enormous ships to carry the remaining people into space, safely away from the ruined world. Unfortunately, Earth's only ground spaceport has just been taken over by the demons. They've instituted a sort of force fielda flame barrierover the port; no ships can land or take off. You gotta go back into action. The pathetic remnants of Earth's soldiers are making an assault on the invaders at the spaceport. If you win, you might be able to turn off the barrier, so that the ships can leave, and **** sapiens may not go extinct just yet. If you lose, that's it. Humanity is history.
(both direct from the ReadMe.txt)
Then Doom had another addition called Final Doom with two more ".wads" Plutonia and T.N.T.
Doom 3 I don't know much about. I havent played it yet and im an old school doom player myself. Just picked up all 4 older Dooms for $10 at Wal-Mart.
From what I heard, the game Doom is based on the idea that a gate is opened between our world and Hell. However, in the movie its more of a crazy science experiment gone wrong Black Mesa style. Is this true?