In Catan Scenario: Crop Trust, players balance their individual need to harvest crops against their collective goal to store and preserve seeds in the Seed Vault. Players who harvest too much endanger the seed diversity, and in doing so, threaten Catan with mass extinctions and a collapse of the food supply. This scenario was developed in collaboration with the Global Crop Diversity Trust, an independent international organization whose goal is to preserve crop diversity in order to protect global food security. —description from the publisher