A hostile force is heading towards your desert outpost. Control a repair bot, navigate among six build stations, and set up gun, cannon, and rocket turrets. Enemy armor can hit your defenses and the robot, so you’ll need to use metal to fix any damaged turrets. After each attack, the engineering team presents three random plans, but you can only choose one. Mix and match turret types and upgrades, guard the entrance, and hold out against all 20 waves.
How to play
Control the repair robot using the keys W, A, S, and D. Drive up to the free circular platform and left-click to choose a tower. With the robot near a built tower, you can click on it to upgrade, dismantle, or repair it with metal. Prevent enemies from getting to the gate. During breaks between waves, pick one of three engineering improvements. Use Pause to halt the game and Sound to turn off the effects.