It's a sad day - this gem got way too little attention. The devs ended up giving the game away for free some weeks ago.
This game was one of the highest ever rated Oculus Rift games - it ended up having an average rating of a whopping 96%
based on more than 40 ratings. Not many games achieve that - and unfortunately it seems too few Oculus users knew about this utterly awesome game - my sons and I love it and usually play it around Christmas time.
I still have the game, it works perfectly using super sampling 2.0 on the Rift CV1 - and here're some memory pills in order not to forget this gem: