Using a vast array of weaponry, defend your lab from alien invaders in this ˜defend your base" type game. Featuring persistent skill level system, over 20 weapons, 6 turrets, beautiful art and professionally developed soundtracks!
玩法：
Movement: WASD or Arrow Keys
Aim&Fire: Mouse
Reload: R
Repair Barricades: F
Change Weapons: Mouse Wheel or Q&E Shop/Skills: Spacebar (In the Workbench Area)
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