Defend the tower as aliens are in full force of attack. Upgradable. Destroy as many aliens as possible and earn more credits to purchase/upgrade equipments.
Taken from Hero's popular series into new genres and beyond with 7 enemy types, over 11 unique tower paths and tower merging allowing for mega towers and mega-mega towers.
Save the planet Tyrian from alien attacks in this deep space tower defense game. Build your best stronghold defense to withstand multiple waves if you can.