Pull the gate up in this defense game and make sure none of the attackers makes it through. You will be in charge of keeping the fortress secure as you are under siege from a race of barbarians. Use the cannon to shoot and hire units to fight.
In year 2222, people invented a portal. In year 2281, the first habitable planet is found. Its colonization is made through portals and it turns out that humans are not the only sentient race in the universe..
Set of viruses have united to attack a hospital. They want to infect all people inside like ebola virus. Build defensive medicine towers and stop virus attack at all costs!
Defend your base against incoming enemies from all sides. Your commandos have ability to call special orders, upgrade turrets and towers. Playing 'E'ndless level gets your score on the leaderboard.