Apparently (like most things) Steam has a back door, you find this door and you can put any game or none game onto Steam without any of the site's staff approval. You can find the full detailing here:
http://steamed.kotaku.com/teen-sneaks-his-janky-game-onto-steam-without-valve-s-a-1767788386
It's a good read and much better than watching paint dry.
http://steamed.kotaku.com/teen-sneaks-his-janky-game-onto-steam-without-valve-s-a-1767788386
It's a good read and much better than watching paint dry.