It’s up to Doomguy to find where the invasion is coming from and put a final end to it. Did you love Doom? Then you’ll probably love Doom II, because it’s largely more of the same, just with a few tweaks, new enemies, new weapons, and some technical improvements.ĭoom ended with Doomguy returning from Hell Mars to find that Earth had been overrun by demons and was being merged with Hell.