I'm looking for a large Medieval fantasy-ish world with no roads/only sidewalks (I don't want any cars, only horses), villages that are spread out kinda far from each other (You'd have to ride for a while before you get from one village to another), forests, and castles, the whole Medieval package I have all EPs except generations and no SPs. This is something I've been wanting to see for a really long time, and help would be greatly appreciated

I'd say that the Praaven is the best one out there right now. It's still in the Creator Feedback -forum but if you want to try, here's the link: http://www.modthesims.info/showthread.php?t=488232

You could also pick any world you like and use NRaas GoHere to remove the ability for car/boat routing.