This is one of the games that I would definitely buy on GOG even if I already played it on Steam. I followed this before it got out and was a bit on the fence about it, because, well. I have played Cat-Games and most of those - sadly - are not very good or get boring fast or are missing quite a lot of depth and/or potential.
But this one. THIS one. Is so very good! You get to see a world with quite a bit of detail, including behavior and lore of the characters, the gameplay is fluid and neither numbingly easy nor frustratingly hard in both exploration and fast-paced parts. The story is there (!) and good (!!), memorable characters, just lovely all around. I remember almost everything even three years later and that makes this game a very special one.
I would hate to have it disappear!