Aside from its basic structure, the Survivor game doesn’t have a ton of stringent rules. Players are allowed to negotiate with host Jeff Probst over supplies, cheat off of each other during puzzle competitions and basically govern themselves at their own camps.

The episode, titled "Nightmare Fuel," had a shocking twist delivered to the remaining 10 players in the immunity challenge by host Jeff Probst.

The show’s creators set the parameters, they throw in some advantages and twists, and they let the players run the game from there. The rules can even be bent on occasion if the castaways want to negotiate for resources.