Slug Wars has a simple gameplay concept: the player controls the right side of the screen and their opponent controls the left side. You control an army of slugs that do battle in the middle of the screen after emerging from your side. Strategy comes into play when choosing what slugs to use in what order since they all possess unique characteristics. For example, the soldier slug is very fast but weak, and the tank slug is powerful but slow. Also, each slug has a different cost associated to using it and you can make money fast by collecting flowers which sprout up on the battlefield. The object of the game is to get three of your slugs to the opposite side of the screen and presumably into the enemies base.