Doom

Doom is divided into three episodes: "Knee-Deep in the Dead", "The Shores of Hell", and "Inferno". A fourth episode, "Thy Flesh Consumed", was added in an expanded version of the game, The Ultimate Doom, released in 1995, two years later and one year after Doom II. The campaign contains very few plot elements, with the minimal story instead given in the instruction manual and in short text segues …