Thank you very much!
We did create the visuals ourselves 😀
Sounds really cool! We are working right now on an English version of the game and we will absolutely submit it!
Hey! I've uploaded a new Mac version now, please try to download it and see if it works :).
If you get the same problem, try to see if this helps:
http://osxdaily.com/2013/02/13/open-zip-cpgz-file/
Thanks!