This resource explores the tension between established social structures and primitive instincts through a simulated resource crisis on Reef Island. Students will analyze their own decision-making processes when facing scarcity of essential resources such as water and shelter materials. The simulation presents a conflict between the rational choices dictated by a previously established Charter and the instinctual behaviors driven by the survival instinct, emphasizing the struggle between civilization and savagery. Students are prompted to reflect on their decisions, categorize potential actions based on their psychological origins, and justify their choices using a Claim-Evidence-Reasoning framework. Additionally, the resource encourages analysis of the fragility of established laws in the face of psychological pressure, guiding students to understand how quickly social agreements can dissolve in crises.