scavenger modification

Graft monster parts onto scavengers to help them survive a deadly wasteland. ​ ​You are a technician of an underground shelter. Your job is to surgically modify surface scavengers, grafting monster organs onto human bodies to help them survive the frozen, toxic surface. ​Each day, you will inspect the inventory for newly extracted parts, and figuring out what works best for the scavenger. You can even combine parts creatively to make compound parts. idea originated from a game which i don't remember the name of hasn't test for long playthrough; it might struggle to remember the day count for low token users.