Ask HN: Are There Any Play by Email Games?

I just saw https://news.ycombinator.com/item?id=18577842 where somebody used SES to collect spam emails. It reminded me that somebody posted a play by email game to here a couple of years ago. Does anybody know what that game was and if it's still around? I'm also interested in any other play by email games. If there's enough interest I might try my hand at writing such a game, and putting together a serverless stack to run it.