In Epic War 1, 2, 3, 4, and VI the castle is what must be destroyed to end the level. The player must avoid his/her castle being destroyed, and must destroy the enemy's castle; in Epic War VI, the enemy can have two castles, so in this case, both must be destroyed. In Epic War 2, 3, and 4, when the enemy's castle takes enough damage, a revenge wave will be sent out. Epic War 2 first has revenge waves in level 7, Epic War 3 starts them when the player reaches level 3, and Epic War 4 has them on hard and epic difficulty settings, but not normal difficulty.