The zombie apocalypse comes out of nowhere. The city, once brimming with life, is now a place of death, filled with a thick fog and horrible shrieks. You find yourself in cramped spaces, teeming with the undead. Defend against the waves of zombies as your fight for survival begins! < Flocks of fearless zombies > Use an arsenal of firearms to obliterate the ravenous undead! If you do survive, you've only got a moment to breathe. The next group of zombies is already swarming in! Over time, zombies become more powerful as they continue to pour in! Prepare for the running, crawling, ambushing horde! With shotguns, rifles, machine guns, and more, you're fully equipped with firearms for any situation! Upgrade your equipment to become even more powerful! From your basic walkers to menacing zombie giants, all sorts of trials await! See how long you can last in Zombie Defense, test out weapons in Weapons Experience, and more with all the different game modes to enjoy!