Many different creatures are coming to attack the castle.
The crazy engineer has to defend the castle by responding with the weapons he has developed. You need to earn more gold to help the engineer. You can improve the castle and weapons with the gold you earn. You can also recruit the engineer's brothers to the task. Mad Defense, tower defense, castle defense, tower building, upgrade towers, gold earning, defense strategy, action game, tower defense game, mobile game, strategy game, castle, enemies, fortress, tower upgrades, gold, defense, action, mobile game, strategy