Looks like it was not working properly if your Steam interface is not English or Russian. It means if you have Japanese interface for example, the game would crash and display a message with some mysterious "kekpek" variable.
Now it should work properly. If something goes wrong, don't be afraid to write in the discussion thread (link sadly removed). Really, don't be afraid! I subscribed to it and I'll get a notification everytime someone writes a message there.
UPD: O'k the topic is gone. Here's the other one: click.