Survive increasingly challenging waves, unlocking new weapons and buildings as you progress through timeUse more than 70 weapons to fight your enemiesBuild 16 different defenses, such as the Archer Tower, Drone, Paratrooper Hangar and many other structures that advance through timeRecruit allies to assist you in combatReceive rewards and purchase permanent/in-game passive upgrades to strengthen allies, buildings and even weaken enemiesFace dozens of random events. Vikings, vampires, bounty hunters… You never know what might come next Fight 12 unique bosses and other powerful enemiesEach time you play you will find different weapons, upgrades, events, bosses… Learn your strengths and win this challenge!