Thought I saw some discussion of this a while back. Just a few links:
http://www.opencroquet.org/ which begat http://www.opencobalt.org/home and http://code.google.com/p/openqwaq/ which is the uncle? of http://virtualworldframework.com/
Nikolay Suslov also had a very nice version which I don't have a link for right now.
Thank you, David, for the link to Virtual World Framework as this interesting new Ruby / Javascript offshoot of Croquet had passed me by. You wrote:
Nikolay Suslov also had a very nice version which I don't have a link for right now.
I think you mean Krestianstvo SDK. Though I didn't use it myself, I watched some very nice video demos of its Kinect motion sensing feature.
The krestianstvo.org website has a parking page right now.
However the images are still available:
https://code.google.com/p/krestianstvo/downloads/list
as is Nikolay's blog:
http://nsuslovi.blogspot.co.uk
Have fun! David
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