In this game, you fight monsters in compact arenas. Your task is to place mercenaries before the battle, and then watch the fight. Although the mechanics seem simple, the key to victory is in proper planning. The outcome of the battle depends on who and where you place them. You will face different types of opponents: some attack in close combat, others strike from afar, some explode when approaching your fighters, there are those who heal allies, and even those who create new enemies right during the battle. Each battle is a tactical task, where your decisions determine victory or defeat.