As far as I can tell, the original version of oxyd on this website and all other mac versions on the internet are not cracked and can not be played without the code-book, which I was also not able to find online anywhere.
The level select codes past level 10 are useless due to them being randomly generated from that point. I have got my hands on a copy of this book, and would be willing to share, would anybody be interested in this?

