Rugged Coast
A Rugged Coastline leads to the Glorious Soviet, and the Decedent West.
A large realistic map with careful resources, and plenty of challenge.
6 Map connections, 3 on each side, one of each size.
For all intents and purposes this is an Un-Populated map. All the population is beyond the map edges. (there may or may not be a Gulag)
Also try-
Feelgood Repubilc
https://steamcommunity.com/sharedfiles/filedetails/?id=2051315060
Verdant Shores:
https://steamcommunity.com/sharedfiles/filedetails/?id=2505965055
Enjoy!