The game Mutant Herd follows the story of a group of rebels fighting against an evil corporation that is experimenting on humans to create mutants. The player takes on the role of one of these rebels, who must navigate through the corporation's facilities, avoiding security patrols and collecting information to uncover the truth behind the sinister experiments.
The gameplay involves action-packed sequences where the player must fight off hordes of mutant creatures using a variety of weapons, including pistols, shotguns, and grenades. The game also features puzzle-solving elements, such as decoding messages and finding hidden passages to progress through the levels. As the player progresses, they will encounter increasingly difficult enemies and obstacles, requiring quick reflexes and strategic thinking to overcome.