Doom II Hell on Earth, is a first-person shooter game developed and published by id Software. In this sequel to the original Doom, the protagonist is still the same hero - the last remaining space marine. After having single handedly saved Mars from demonic threat, he returns to Earth, only to find out that the demons have already invaded it, killed most of its inhabitants or possessed them. It's his task to bring down the force field around the last operational star port to allow the remnants of mankind to escape to the stars.

• Doom II Hell on Earth