I wouldn't put it so far as a Submachine replacement, but it's easily one of the most best crafted room-escape series ever made. No doubt.
It's good to see that we have another room escape creator that knows more than to throw a bunch of polygons together and call it a "room". I feel like the genre struggled with that for years. But now you have people like MS, Rusty Lake, Krutovig, Neutral, etc. that are really working harder to pull you into the game series. Even though the age of Flash is over, it's ending on a good note.
(speaking of Krutovig, btw, I ran a search for the Abandoned games and Google search warned me that Krutovig might have been hacked. Wonder why...?)