You must have rimworld of madness-werewolves update 1.3.
This is very hard in early game but I will give you some stuff to help stay alive for a week.
Your faction will be a New Tribe.
Start with 1 people, chosen from 8.
Player starting characters have a 100% chance to start with trait: Werewolf (Unblooded)
Player starting characters have a 30% chance to start with trait: Cannibal
Player starting characters have a 60% chance to start with trait: Bloodlust
Player starting characters have a 100% chance to start naked.
Faction relation modifiers:
-Wolf clan (always hostile)
Start with:
-Herbal medicine x4