"Secure Contain Protect" -- https://scp-wiki.wikidot.com/ https://scp-wiki.wikidot.com/ -- a community sourced wiki full of stories about a secret quasi -govern

"Secure Contain Protect" -- https://scp-wiki.wikidot.com/ https://scp-wiki.wikidot.com/ -- a community sourced wiki full of stories about a secret quasi -government facility that hosts cursed sci-fi and fantasy objects. Kind of like a MOO but for the Warehouse 13/Friday the Thirteenth the TV Series universes, and hosted in a wiki. Spawned a series of spinoff media including a bunch of games. Very popular although I hadn't realized the fanbase was similar to me reading Goosebumps novels growing up -- huh. My favorite small communities in the 90s was the 2 or 3 servers that hosted active games of the Quake 2 mod 'Gloom', which never took off and I think had maybe tens of players; and various MUDs which had maybe hundreds of thousands of players and are now down to maybe tens.