There already is an attempt to make an open-source D&D-derived game: OSRIC. It's apparently based on 1st edition D&D (which, in this case, actually means 1st edition AD&D, not the little white or brown books).
No friends yet.
There already is an attempt to make an open-source D&D-derived game: OSRIC. It's apparently based on 1st edition D&D (which, in this case, actually means 1st edition AD&D, not the little white or brown books).