I don’t know how to call what i want, let it be water world.
My dream is a gamemode, set in (as you already understood) a world full of water. With a not long story about a cataclysm in Arctics or maybe Greenland, melting ices.
So i wish a very big map with many underwater secrets, a kind of a city on a big panton or something in sort. Every player makkes a character and chooses a start boat. The start boats have different stats like speed or maybe armor etc. Players also start with fishing nets, shitty engines and one of three items chosen by the player at start - some amount of money, a bigger container or a sail.
Engines will always need fuel. As you understands there will be upgrades for your boat, better boats, npc and player raiders.
I dont know why i am i posting this not very original idea, and doing that in such bad way, but anyways…