Open Cities Complete 1.0 mod.
Open Cities removes the gates on all the cities, except the Imperial City, and brings them into the main game world. You can now move seemlessly into all of the cities, without loading screens.
FPS inside the Open Cities will mimic your FPS in the open world. If you only get 5 fps while wandering the country side it is not recommended that you load Open Cities.
There may be a short time period of odd NPC behavior as they move into the new cities. This period does not last more then 12 in-game hours.
The Illumination mod is currently not supported in Open Cities. The mod will load, but the windows will not be lit in Open Cities. The author of Illumination Revived is currently working on an Open Cities compatible version.
Any mods that were located within the city limits will not appear in Open Cities. If any mod authors wish to make their mod compatible with Open Cities, we're more then willing to help.
Occassionaly horses may exhibit odd behavior inside Open Cities. They are generally able to get themselves out of such situations pretty quickly.