add day and night. then make werewolfs that come out at night and you can become a werewolfwolf if biten.
you could add different monsters that come out at night like giant spiders or werewolves. you can become a werewolf if you get poisoned by it and don't drink a healing potion in 2 days. i would recommend having day be 10 minutes dawn and sunset 1 and last of all 5 minutes for night.
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