Ken's license:

- The name "Crystal Mines", the graphics, sound, music, and the levels are NOT open source.  People other than me worked on them, and for that version of the game actually got royalties and still have ownership.  It's OK to possess them for personal use, but they can't be reused in a new game or distributed for profit.

- As the sole author of the code, I (Ken Beckett) will allow the source code for the NES version to be used in other works, provided that:  A) Credit is given to 'Ken Beckett' in both the portions of re-used source code AND in the credits of the new game, and B) That the code is modified sufficiently such that the new game is not easily recognizable as being Crystal Mines with new graphics/sound/music.

-Ken