It’s the sunset of the human race. Earth lies in ruins. There seems to be no hope. And only a bunch of heroes known as the Guards is still fighting against alien invaders. As one of them, you’ll have to demonstrate extraordinary courage and persistence kicking quite a lot of extraterrestrial asses! Each enemy you kill will increase your experience. When you gain enough of it, you’ll be able to level up and learn some new cool tricks. Add a whole arsenal of powerful weapons – and the mankind won’t seem so defenseless after all!