Can't believe you've tried to even do a multiplayer game this heavy in a 7-day jam. What were you guys thinking XD. A walking ship is really cool as a concept. It also looks nice seeing the legs of the ship move when you are controlling the ship. The gameplay is super complex, which is nice for a multiplayer game like this, but it really needs a good tutorial and onboarding sequence to make the player remotely understand what is going on. I am not sure if this was a feature or not, but is shipbuilding a thing? I quite dislike the standard layout of the ship, with too many cannons in various directions to toggle through. The system felt like it was built with all kinds of layouts in mind but it's just the default one being plainly difficult to use.
Anyway, this seems to be the start of something that has potential, and I think you've done a nice job making it.