I'm not a professional game developer by any means, but from what I have seen it is expected that you are learning at home whether you went to school or not. As other people have said the degree will get you past the interview filter that most companies have. There are plenty of companies that wont even consider applicants without one. After that it is all about what you have to offer them. My friend got his last job because he had made an add-on for a game he played using LUA. Sometimes that's all it takes. The best advice I can give is, whether you go for the degree or not, start working on things. Make things that one day you can show to someone that will give them a reason to chose you over someone else.