I downloaded it from the play store, which worked for me. The first and biggest issue with this game: you will be BLASTED with ads. I'm not exaggerating when I say there is more time spent watching ads than playing the game. That is deathly boring and its completely unacceptable and for that reason alone it's not worth playing. it's just an advertisement machine. after this, there doesn't seem to be any other selection of weapons I can find, gunshot sounds randomly stop making noise. no story at all. all zombies go down in 3 hits, always the same, with just one gun you get that looks like a full auto rifle but is a semi auto/single shot rifle. there is absolutely nothing at the home base. you can walk around but there's nothing to do there. there are only three music tracks that play in the whole game. I don't get it. this is a totally half baked game with a predatory ad system. The models/graphics look cool, I like the style. that's really all I can say about this.