Have you ever play Castle Attack? 3 Defenders is clone of it we could say. Control up to 3 Defenders in this strategy defence game where tons of enemies in waves will try to defeat your base. Equip the different weapons that you can unlock and upgrade as you advance in the game. 2 Bosses are waiting for you in your way along with several different enemies.
Use your mouse to aim and shoot. "1" and "2" are to swap weapons. "3" is for special magic.