Update: The official imcGames GitHub account confirmed that Tree of Savior on Steam Greenlight is real and no fake. It already received enough votes to get accepted. We will get more information about this soon according to imcGames.
Link: Tree of Savior (English Ver.)
Update2: imcGames posted a statement regarding Steam Greenlight on their Dev Blog.
Hello. We are TOS Team.
Many people are asking us who submitted Tree of Savior into Steam Greenlight so we want to clarify here that we, imcGAMES made the submission.
We want to apologize to our fans that we weren’t able to post the announcement about it before the submission. (Please understand that it was our first time submitting our game into Steam Greenlight ^^)
Tree of Savior is now Greenlit within less than 10 hours after we made the submission.
We want to thank you for your love and support for Tree of Savior.
For the information to be updated from now, we will officially announce it on our dev blog and Facebook so stay tuned for more detailed information in the future.