Do not use Go to develop a game, it will just be an albatross around your neck. The toolchain for game development extends so much deeper than just the language that you write things in that you're going to find obstacles at every turn that just won't be there if you just go with something established.

Don't get me wrong, I love playing with new languages, but if you are trying to make games pick a language that has a community and support and you will be much better off.