I'd imagine people from this thread might be interested in our crypto-project Townforge, which we have been working on with moneromooo for quite some time:
https://bitcointalk.org/index.php?topic=5317101While it is certainly not CK 2.0 nor do we wish to carry over issues from CK, it does pay homage to its good portions while leaving out the wackiness. For example, the game is fully on a blockchain (heavily modified Monero fork), is exit scam proof etc. Going from browser games to a 3D world makes it quite different, but hopefully some old time CK'ers will find it intriguing.