Return to Pirate's Isle is a a text-based adventure game, with minimal graphics, where the player is a pirate hunting treasure on an island.
From the manual:
"It is now time to step into the unknown. Your mission is to locate thirteen hidden treasures. You must find and deposit the treasures in a secret place to score points. Carefully plan your moves to avoid unexpected dangers as you search for the treasures. Does wealth or death await you? Good luck and good hunting!"