WormWars is played by multiple players simultaneously. Each player controls his or her own worm, and tries to stay alive until all other worms are dead. Up to four players can play simultaneously.

It is possible for a single player to play it, with one to three computer worms, but it's more fun if you challenge a friend or two! You can select the total number of worms playing, and any worms not controlled by a player will be controlled by the computer.