Enemies are pouring out of the rift and the goal is to prevent them from reaching the portal at the end of the path. The portal will get destroyed if enough enemies reach it. The player can stop this from happening by placing towers near the generated path, which will try to repel the incoming wave. At the end of each wave, the game board is cleared, a completely new path is generated and new towers will be given in the form of cards, creating a new unique level to beat every round. As the player progresses new enemies will appear with more and different effects. New towers will also get effects and upgrades. The player will create powerful combinations, using the strength of different tower effects to take down the increasingly difficult waves of enemies. Players can compare their progress and compete against their friends on the leaderboards to see who can reach the highest level.