Grand Zombie Swarm features open world zombie shooting, you are special forces soldier and your mission is to use different types of weapons to shoot hordes of zombies and try to survive each level. Zombie shooter, open world, survival game, zombie horde, special forces, action game, 3D game, Unity3D, WebGL, blood, gun shooting, shooter, shoot 'em up, zombie survival, first person shooter, indie game, mobile game, free to play