Castle Defender Saga is a battle simulation game where you have to defeat the enemy base before they beat you! Make upgrades to your tower, add extra archers and use buffs to gain an edge over your opponent. Strategically send out your army to counter the enemy and bring victory home! Can you be come the ultimate Castle Defender? Castle Defender Saga, tower defense game, castle defense, strategy game, battle simulation, upgrade, conquer, archers, buffs, enemy base, tower upgrades, defensive strategy, action game, simulation game, mobile game, free to play.