The aliens have invaded Earth and have wiped out everybody except for a handful of hardy survivors. You are one of those (un)lucky people. The air has turned poisonous and everything has been made to accommodate the aliens. Apart from a few underground shelters, the Earth has been completely destroyed. However, with more twists to be expected in the game, be on your toes to fight whoever comes into your path, be it human or alien. Equip yourself with 4 weapons, buy ammo and filter masks, and stockpile food to replenish your health. Divided into more than 10 stages, this dystopian world will have you hanging on until your last breath.
See the in-game tutorial for instructions.