I can’t find something about this in the Forum. i know the Radiant-Team use a Develope-Modus and automatically generated World for testing new functions and Mod’s for the game.
I also wanted to make a small Mod and my question is where i can find this Tool to testing it. Someone can help me with that?
You’re searching for this, @pingu: GitHub - stonehearth/microworld: Microworld Stonehearth Mod
I think it’s currently broken, though. But you can take a look at it.
Ohhh yes! 
Exactly this one! Thx!
I will try it…
@Relyss, I clone’d that repository yesterday and successfully got the microworld running. It seems to be working correctly for Alpha 21.
Thanks for the update, @illdred! 
I thought I read recently about some errors when using Microworld, but I might be wrong (or it might be already fixed).