I think summertime and 1 month before GamesCom is a good time to develop my own civ. I gathered the prototypes which I occasionally made during free evenings, papers with ideas, which I stored for several years, and got enough inspiration to make something big within the given time frame.
The map looks like this now:

Procedural city names generator which I've made after the first run gave the following list of cities in this world:
Ni
M
A
Lgh
Nda
Agetobe
Lacoteice
Adilovirn nis
Denane
Rluriziv
Curncapplornn
Chrdulusm
Lensa
Burokoskimbrossk
Pais
Nen