Free to keep game when you add it to your Steam account.
Plunder Panic is a swashbuckling, up to 12-player action-arcade game where two rival crews battle for supremacy on the high seas! With both local and online play, work with your crew to plunder booty, defeat the enemy captain, or scuttle their ship. The first team to capture an objective wins!
Looks like something that’s bound for free to play mediocrity.