The extremely popular shooting game Doom 3 is a real masterpiece of the genre. We bet that your blood will get cold in your veins after you launch it! This is a story of the lab located on Mars, where the researchers and scientists were used to do their tedious work till one fine day when the local demonic aliens attacked them. The experiments went all wrong and the scientists opened a portal that leads right to hell. Horrible creatures got out of there and now they will try to conquer the world. Take your cannon and shoot them all before they tear you and the entire universe into pieces.