Heyho.
Although it might seem impossible I can assure you it is not impossible. You probably realize it once you tested many games yourself (which you totally should do! I mean, you don't evolve yourself if you stay enclosed in your personal space. There's even a game that simulates (on a very rough scale) a lot of characters completely on their own.
Really, get out there and test games. Learn and keep on being a dev.
Stay crunchy.