Yohoho! Puzzle Pirates is a massively multiplayer online game by Three Rings Design. The player takes the role of a pirate, having adventures on the high seas and pillaging money from roaming enemy ships (human- or computer-controlled). The mechanics of Puzzle Pirates are driven by puzzles. For example, to effectively sail a ship, crewmates must play puzzles representing work at the sails for speed, pumping bilge water to remove it from the ship, and carpentry to fix any damage the ship may take.
Puzzle Pirates is open-ended and community-driven. Over time, pirates can join a crew, progress in rank within that crew, buy and run sailing vessels and shoppes, and perhaps even become captain of a crew, royalty within a flag (an alliance of crews), or governor of an island. Islands are governed and shoppes are managed exclusively by players.