My first idea was making a joke about a Tax Simulator / Spreadsheet Simulator. Then I remembered that I play EVE Online, so it's not a really bad idea 😅
So my entry will be Multiplayer Jigsaw 2000: you and other 99 players will join a room and, together, you'll all complete a 2,000 piece jigsaw!
There's no punishment for destroying or messing up with the game, of course; also, there won't be any GMs around to kick out the trolls. So the chances of actually finishing a single jigsaw is literally 0%!
F U N G U A R A N T E E D!