Spielgeist.net (gamemind) is a portal, for playing cardgames, just in moment skat or sheapshead, and metting people. You can play in a round of human players and artificial intelligences or donwload a version for your mobile phone. Furthermore you can develop your own ai and battle with others. And the best: It's open source.
These details are provided for information only. No information here is legal advice and should not be used as such.