Originally Posted by Motoki
Not that I can see. The main website for the game has a link to buy it that goes here:
And there it clearly says near the top:
"A Steam account, registration with enclosed serial code and internet connection are required to play."
As far as I can tell there is no version of it anywhere that doesn't require Steam, and yet the fact that Steam is DRM escaped them and they still felt the need to inject TAGES into it.