It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

Vladimir Beletsky [dév.] :
For now only Windows, can't rule out that Linux eventually be supported, but not on the release
No posts in this topic were marked as the solution yet. If you can help, add your reply
The game is wonderfully ported on Linux, just developers lazy to do this)