Originally Posted by DeepO
It seems quite big (I havenīt played it), but it isnīt a part of TSLRCM (since most of it is fan made content).

Where did you get the idea that most of it is fan-made content? From what I've read, it's all stuff that was originally intended to be in the game. Afaik, the only thing that's fan-made is some of the voiced dialogue.