The Sims 2: Castaway is a continuation of the Sims 2 universe. This time around, the player takes control of a Sim washed ashore on a deserted island and must help them survive and find a way home.
The game has the player explore the island, collecting supplies and materials for food and shelter while exploring for clues to help them get home. The player must also deal with the forces of nature and many obstacles scattered throughout the island. Exploring and finding treasures can teach their Sims useful skills, such as fashioning better shelters and making meals that they can eat.
Players can create their own Sim, customizing their appearance from hair and skin color to height and weight. The game allows for similar gameplay experiences to the other versions, with the exception of graphics and control schemes, which vary across different platforms.