RWG Plus  

-Unlocks random world generation of 12KM to 15KM worlds for A21. 
-Optimized vanilla world size brackets for 6, 8, 10 and 12-14KM maps.  
-Increases overall City/Town spawn in RWG. 
-Encourages all vanilla POIs to spawn at least once. 
-Increased amount of wilderness POIs on 8KM maps and larger. 

16K ended up being broken despite several efforts, 15K is currently untested if there are issues please report them 

How to use:
1. Install like you would any other mod.
2. Randomly generate the worlds on your preferred size. 
3. Enjoy. 
4. Realize vanilla RWG still gets boring pretty quickly.
5. Download PEP POI Expansion Pack from NexusMods to make things much more interesting (and delete this mod if you did, because PEP has it's own optimized RWG)
6. Get into Teragon and make truly randomly generated worlds and gain much more control over it, enjoy superior terrain features, shape cities however you like etc. etc.