I just posted v2 of Under to Wire which contains an additional 5 levels to Century. V2 can be found at the link on the right-hand side of the screen or here.
This release will be the last one containing Century and the next variation that the team and I will be working on will be called Cyborg. It will still have the same feel as Century but will be focused primarily on Active Directory, DNS, DHCP and few other random areas that will total somewhere around 20 to 25 levels (like Century).
I hope you enjoy the additional 5 levels of Century and stay tuned for the release of Cyborg within Under the Wire.