Zombies Attack Idle

What do all zombies love? Brains, that's right. And who has the most brains? Humans, of course! Pity no one wants to part with them voluntarily. You will have to work hard and gather a whole army of the walking dead to take away this valuable resource by force. Brains allow you not only to raise more dead, but also to improve them and develop the graveyard. The difficulty of the enemies will also increase. While you're having fun with civilians on the first levels, the next levels will already have an army coming up. Good luck!