Mine gold & ore, raise walls, man the corner ballistae, forge better steel, train soldiers and summon a leveling Hero with talents & spells. Hold the Iron Gate through 30 waves — bosses, siege rams and dragons are coming.
Single Player: castle in the center, enemies from all sides. 2-Player Arena: two castles face off AND neutral monster waves attack you both — destroy the enemy keep while surviving the horde (share the screen). Tap a spell, then tap the field to aim it.