I think that you can put another types of mobs, an ocean bottom, a diving suit, other tipes of weapons, a system for multiplayer and a day night cycle. I think those things would be the best
so basically Subnautica
no subnatica is all underwater theres islands but its mostly underwater the raft you dont want to go in the water
Except that Subnautica has super high-tech equipment and is set on an alien planet with alien life forms.
Do you mean becoming free shark food?