It is probably in the %appdata%
left meancity i think, where's the curch is located, instead o going up you go left, if i remember correcly, but if I'm wrong go to a city and go left
enjoy
It has apk, you can find it in gamcore website.
Is there any major difference between 9666 and the final version?
The troll wall (door) that goes by three questions marks somewhere in the map
Edit: if you arealdy exored it it will no longer be with question mark, but it is between cities.