So I can make mountains and valleys just like anyone else, but now I'm thinking along the lines of caves and tunnels....

Yes, it's a great idea.



It is very rare to find a level editor capable of creating a tunnel or a cave in the mountains, because it is difficult to program. Most developers propose to create "tunnel Brush", but that does not solve all problems. It is true that tools 'hollow' the mountain is much more pleasant to use, directly in Reloaded.



The problem is the same for road and river generator. I hope that Reloaded will have these features, because it allows you to create amazing things, very difficult to create with Brush. Not to mention the time you win when everything is working directly in Reloaded !