Flexible survival
http://blog.flexiblesurvival.com/
available both as a text adventure game like CoC and an online game (in what I believe is called a MUD )
features Several kinks; the biggest of which being transformation, and several furry encounters as well as some non furry ones (in fact from having played both CoC and this one; flexible survival can be considered FAR more of a furry game then CoC, since it has many more enemies, characters and events around furry characters)
EDIT: also I forgot to mention you can also find flexible society and prequel (flexible infection in that site ); the first of which is a society/tribe simulator (also furry in theme) and the later being centered entirely around transformation.
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This reply was modified 10 years, 8 months ago by Arkanum. Reason: adding more info