I’ve only played Man O’ War: Corsair [official site] briefly, but I’ve enjoyed my time with it. A massive shark tried to eat my ship. Currently in Early Access, it’s a loose adaptation of Games Workshop’s out of print table top game of combat on the high seas, Man O’ War. It’s a more expansive game than its inspiration, playing out a little like Sid Meier’s Pirates, but with orcs and zombies and all that good stuff. The latest update adds melee combat, so that your boarding parties can really party, as well as Chaos Warriors and Chaos Spawn. You can also turn bits of sea monsters into weapons, which sounds nice.