Fishington.io

Fishington.io is a multiplayer fishing game that includes characters from the game Betrayal.io. Players can cast their lines and catch fish to sell on the market, and can create an account to complete quests, level up, and save their progress.
It was made by the same company that make Betrayal.io and that company partnered with Discord to have their games available under the Discord Games Lab for some time, but they were eventually removed, due to them shutting down.