In Flat Zombies: Defense&Cleanup, you're responsible for eliminating zombies from a building. You can use a wide variety of guns, from pistols to shotguns to sniper rifles and sub-machine guns — all of which can be purchased using in-game currency. 

As you go through the building's eerie corridors, the number of zombies you'll face increases. So, keep an eye on your ammo and avoid getting cornered by the undead, lest you become like them. Your health will not regenerate during the game, making for a hardcore zombie-shooting experience. Flat Zombies: Defense&Cleanup only works with devices with Android 5.1 and up. Check your phone or tablet's OS version before downloading this game.