Setting up source control for you indiegame project should be easy .... and it is. So easy that I'm ashamed that for my first projects I didn't use any and relied on the luck of backups and the avoidance of coding stupidy (usually fail on that one at least once it a project) . 

Happy to say that the very first thing I did before I typed a character of code for Boing was to create a git repository and set up a github account.