I have only ever finished one major project, but I decided it was finished when I could think of nothing really great I could add to it without a major rewrite of perfectly good existing code.
I think games only need to have a certain amount of depth to them and it's fairly easy to know when you're going too far when you find yourself nit picking over small things that nobody is ever going to notice the difference with anyway.
I think games only need to have a certain amount of depth to them and it's fairly easy to know when you're going too far when you find yourself nit picking over small things that nobody is ever going to notice the difference with anyway.