Cities is still in beta (version 0.24 currently) as the Kickstarter was so recent, but I believe it’s planned to be finished by end of the month. I’ve been GMing it since version 0.07 though, and found it very playable already from day 1 :)

When I finish my homebrew I’ll post some more about it. :)

I’ve been running Worlds Without Number and Cities WIthout Number campaigns. I’m also putting the final touches to my homebrew game based on blending ACKS, WWN and classic B/X.