Only of historical relevance, but sure gave me a good chuckle of the "omg I can't believe that's how they made that work!"-sort when I first read it: Ultima Onl

Only of historical relevance, but sure gave me a good chuckle of the "omg I can't believe that's how they made that work!"-sort when I first read it: Ultima Online fork()ed its server process(es) for marshalling in-process data into files on NFS, and used that mechanism to persist world state: https://news.ycombinator.com/item?id=9820645 https://news.ycombinator.com/item?id=9820645