I know that converting content from one game engine to run in another game engine is illegal because someone tried to convert Morrowind completely to run on the Oblivion engine and Bethesda denied it.

I'm interested in converting some Daggerfall maps to run with the Morrowind engine because of limitations with Daggerfall engine where dungeons can only have one entry/exit. My interest in doing this is only for toying with Daggerfall architecture and to show others, and not to convert the game or to create a playable mod. In particular i'm interested in using grammar rules and l-systems to proceduraly generate believable dungeons and towns which closely match a textual lore description of the place.

I would have used another game engine but unfortunately the best possibilities (DaggerXL and OpenMorrowind) are still in not mature enough so i would have to use an engine i know how to mod and one that is compatible with Daggerfall architecture (i'm considering writting a software render engine myself but will take at least one year to finish).

This said do you think there are legality issues in doing this?

The problem is, the Daggerfall Maps are all dynamically generated. So, there is no real map to speak of to grab.

I remember there was a tool back when for Morrowind that created dungeons for you based on some criteria that you entered. It was done for a quick map or tomb creation, then you would come along and add stuff to the interior that is created. I remember I could tell it the number of branches or levels to have. Let me see if I can find it.

EDIT: Found them, seems there are a few now

http://www.mwmythicmods.com/toolsmod.htm#Tool_esp_i_gm

I think you can create pretty much what ever you want. I remember being able to create big grids that I could put door or walls into to make mazes. Now, you just have to add rules to the doors to create the logic path that you want everyone to follow.