Is there any possible way I can change my login name? because steam created my account for me and my login is some convoluted name with a ton of numbers in it. And I can't reset my password because the website thinks my login name is invalid. And when I try to login via Steam the game just closes for no reason.
You have to press facebook button and log in to steam on site.
Also you may try to reinstall SK on steam or update java there, steam SK uses another version of java.