is it possible to have an option for difficulty, but only appears after you clear the game or after 5 prestige. Or also allow the houses to have actual doors that villagers can enter and exit at will, but zombies have to destroy to go through. the houses are also minimalistic as it is a square, i prefer them with geomatric shapes too. the houses provide no shelter for the villagers as there is no outward defenses protecting the villagers inside. maybe put turrets or something that protects them.