For a bit I played in a Nomic. B Nomic to be specific. It was quite fun.
The game is now defunct but the message archives are still online:
The wiki that contained the rules and game state is no longer around. I did manage to find a snapshot from here:
I have no clue when it was from, but it is a ruleset I remember. These are the rules listed below as "Rules From Here"
I have now searched on the Internet Archive and have found more.
Rules have been reformatted, by hand, into Markdown. Errors in the translation are likely.
I yell CREAMPUFF!