I love Pirates! and I love a little local multiplayer I can entertain my kids with. Of course I got more obsessed with developing the procedural terrain generation, day/night cycles and random pirate names that I still haven't turned this into a proper game.
It's all based around the Gamepad API, so you do need to connect at least two bluetooth controllers to your computer to get playing. Once you do, left and right shoulder buttons fire your port and starboard cannons respectively, and A and B will raise and lower your sails to get moving. Built with React Three Fiber, and Cannon physics.