You are a giant armored robot, and you must shoot all that attack you. There are many upgrades and many possible kits to use. Play through all 10 levels.
It's a nightmare. You are trapped in an abandoned mine with an injured comrade at your side against God-knows-what. Make your stand, get out alive. Three words of advice: shoot to kill. These things are not human, they are monsters..
Defend your fortress from the oncoming enemy waves. Place turrets in locations of your choice on your fortress, creating the best defense possible to withhold even the greatest of attacks.
Choose a commander and take part in an epic war that will test your strategic abilities. Position your units on the battlefield and command them in turn-based combat to complete each objective.