The Settlers of Catan is a popular board game where players take on the roles of settlers on an island called Catan. The objective is to collect resources like wood, brick, sheep, wheat, and ore to build roads, settlements, and cities. Players earn points by expanding their settlements and achieving specific goals. The game is played on a modular board made up of hexagonal tiles, which creates a different layout each time. Players trade resources with each other and must strategize to outmaneuver opponents. The first player to reach 10 victory points wins the game.