Codex Gamicus

DOOM 3: Resurrection of Evil is the expansion pack for DOOM 3. It has a new single player campaign where you play the part of an engineer sent to Mars to investigate a distress signal. The expansion pack adds new weapons (including the grabber and the double barrel shotgun) and new kinds of demons.

DOOM 3: Resurrection of Evil also features new multiplayer levels and expands the maximum number of players from four to eight.