I'm not a Face Book member but when I Google The Uncertain game I can see this on their Face Book page:
"The Uncertain added 3 new photos.
May 24 at 11:35pm ·
While we are working on the Second episode, the first part of the game inspires people to creative work."
The post is from 5/24/18, just a few weeks ago and states they are working on Episode 2. Maybe somebody else can give more information. I had signed up for email updates but haven't received one for quite awhile now.