Pet Evil is a social and strategic card game where players fight for world domination. Taking the role of cute mastermind pets players are locked in a nuclear war to the death. The goal is to craft missiles using set collection and devastate opponents with various combinations to be the last player standing.

The party-style game features classic 'gotcha' style game mechanics and encourages players to form social alliances, be deceitful and to back-stab one another. Cards in the game feature various hand illustrated rocket parts which combine to create missiles of varying damage levels.