This Game is Death,hm???

So it's been a bit more than 1 year since last update. So is it safe to say, the game has been abandoned?

What should we do after collecting all the items. The prompt says to leave the mansion, but the mission will fail.

We played mansion map, we colected nearly everything, we were at incense phase, when we got to remaining 6 incenses the announcer told that the danger level is high and we need to leave the house, then right after the announcment we failed the mission? Is this intentional or what?...

Is it still in development? Been a long time since an update. Would you recommend?