It is not far enough along in development for anything remotely possible as modding. But, in the end...no. I don't plan on developing this with the idea in mind for people to make their own custom maps/adventures/games. Why? I'm not making Kyle's Quest

heheh
But mainly b/c I have no desire to worry about developing it as such. It's a side project and I have my own storyline I would like to use..and that will be the game. The story, not the engine.
As for Diablo...it would be hard anyway b/c this engine is not based on isometric or hexagonal tiles. Not that I have anything against your ideas Fett, but they aren't for me.
JJB