Forging with Aleph One? Questionable...

I really do hope that I am posting within the right forums, I saw the forge section of this forum and it brought me back to the Marathon Trilogy and it made me wonder if one could use the engine to create there own games…
I know I may be barking up the wrong tree because this is 343’s forums and not Bungie’s (Creators of the Marathon Trilogy) but I am sure that I may be able to get an answer by posting in this community.