If you could invent one brand new forum game for this board, what would the rules actually be

[UniversalAidan73]

Forum games tend to follow a fairly small number of established formats that have been reused across countless communities for years, counting threads, word chains, simple trivia, but every so often someone comes up with a genuinely fresh twist that ends up becoming a new community favourite in its own right, spreading to other boards and forums once people see how well it actually works.

Inventing a genuinely good forum game is trickier than it looks, it needs to be simple enough for anyone to jump into without reading a long list of rules, but interesting enough that people actually want to keep participating over the long term rather than losing interest after a handful of posts. If you could invent a brand new forum game for this board right now, what would the actual rules be, and what do you think would make it genuinely fun rather than just another forgotten thread?