Somehow Steam has some major server problems right now, when I start SK it says after a while that there is a problem with the servers and I should try again later. But it's been 1 hour and it still doesn't work. And I've seen on the SK Steam Forums that there are several people with the same problem so I'd love to get a response from a dev or gm or someone who knows how to fix the problem asap.
Ok so I've deinstalled and then reinstalled it but didn't worked what a surprise.