Tower Defense is a light, asymmetric game where one player defends a castle from the onslaught of soldiers from the other player. The defender needs to stop the hoards of soldiers while the attacker tries to destroy the castle as quickly as possible. The game comes with a one game card which represents the playing surface. Players are expected to supply their own coins (10 one-cent coins, 10 two-cent coins, and 10 5 cent coins). Depending on their placement, the coins have multiple purpose. They either: (1) represent the life points of the castle and the soldiers, (2) determine how a soldier enters the board when rolled by the attacker or (3) show how much damage a soldier will suffer when played by the castle defender.