"Islet" is a strategic board game that invites players to embark on an adventure of exploration and settlement. In this game, players assume the roles of explorers who discover a new, uninhabited island, teeming with resources and opportunities. Each player starts with a set of resources and a small team of settlers, with the goal of transforming the wild landscape into a thriving community.

The gameplay involves resource management, area control, and strategic planning. Players must gather materials such as wood, stone, and food to build structures, from simple huts to advanced buildings that unlock new capabilities and improve their settlement's efficiency. The island is modular, composed of hexagonal tiles that are revealed and added to the map as players explore further, ensuring that no two games are the same.

Players compete to achieve various objectives, such as building the most impressive structures, cultivating the most fertile lands, or amassing the greatest wealth. However, cooperation is also a key aspect of "Islet," as players can trade resources and form alliances to secure their position on the island.

Victory is determined by a point system, with players earning points for their achievements throughout the game. The player with the most points at the end of a predetermined number of rounds is declared the winner, having established the most prosperous islet amidst the vast ocean.