I always wonder why game creators suddenly disappear, they earn little or a lot, they disappear, their games are popular or not, they also disappear.... If this creator thought that his game would earn a lot from the very beginning, he was wrong, he should have released at least 2-3 updates instead of one.
The game definitely has potential, it seems to me that the creator knows how to build tension, but you have to release a second update at some point, when you don't inform your subscribers that something is wrong and suddenly disappear for half a year, it's really not nice behavior. The only excuse would be health problems or private matters, I don't see any other possibility to suddenly disappear without a word...