SeaDragons.io

Sea Dragons.io is a great online game. Its basically Slither.io in marine environment. In the game, you will be controlling fish, trying to eat as much food as you can. By doing that, you will be growing larger and larger, while also moving upwards on the scoreboard. You will also be getting longer and everyone who crashes into you will die. Watch out though, since the same can also happen to you. Aside from that you can also complete many different objectives and get rewarded for doing so. The rewards can be used to upgrade your fish or unlock an entirely new one. Will you be able to rule the sea?