Hey Hesham. This looks like a really interesting paper, and congratulations on getting published! Unfortunately, this subreddit is for the PC game called Papers, Please. I think you might have posted in the wrong place, sorry. :(
I don't see why you couldn't just re-download it. If it's pirated, well your kolechian scum (try a different torrent). If keeps crashing, try running in administrator mode. Here is an invaluable resource http://papersplea.se/support/?p=32 . NEXT!
Arstotzka is very clearly meant to be an allegory for East Germany, with Grestin being Berlin.
The official website calls it communist in the FAQ.
Also Arstotzka gives employment by lottery, assigns housing with a similar system, etc.
It (and The Republia Times) used to be available on Lucas Pope's site, but it seems the links are dead. I think a version may come with the GOG.com version of Papers, Please, but I'm not sure.