Early Access games like these should be hidden/removed from the Steam store if the devs are going to abandon it, completely incomplete, for over 6+ years. All Guns on deck is an example of why I wouldn't vouch for it at all.
It honestly had the potential to play out as a great strategy game, with the mechanics, ship and character customization, crewing, and weapons you can choose at your disposal. It also comes with action-packed music, many explosion and gunfire effects, as well as a tutorial on how to play.
Bad sadly it's short-lived. After 10-15 minutes of gameplay, I've already experienced everything the game has to offer, which is sadly cut short once I'd reached the next port. The world map is incomplete, and devs haven't done anything as of recently.
Sadly All Guns on Deck gets a thumbs down from me. Don't waste your money on a dead, unfinished game.