I'm just a villager! Believe me!
I have created an online implementation of the Sid Sackson's party game Haggle.
Here's the website: http://mystra.de.
In this game, players start by knowing only a part of the rules which will be used to evaluate their final score.
They must negociate trades of cards, including the ones worth points and the ones which feature the scoring rules.
On my website, the play is asynchronous. It only requires short sessions of 5 to 10 minutes a few times a day to post your offers, or reply to those made to you by your fellow players.
You may receive emails automatically when a reply to your offers (or a new offer to you) happens, if you wish to activate this setting.
I'm planning of setting up a game from next monday (nov. 4th) to thursday (nov. 7th).
If you wish to join this game, or a later one, feel free to geekmail me (or contact me at firstname.lastname@example.org).
I hope you'll enjoy it !