It's a good idea. Just some little problems made it a bit hard to play unfortunately (tried the apk version, so not sure if the other one would be better).
For some reason my hands were rotated around 90 degrees, what made it bit difficult to grab the flashlight. Also the flashlight turns off totally randomly each few seconds unfortunately.
I like the look of the ghosts , just wished, that they would have any impact or so. Seemed they just disappeared when they reached me, what somehow made them less terrifying suddenly ^^
I think i reached all corners ( just wished there would be a possibility to run or so... really durated an eternity^^ ), but somehow couldn't find the exit,.. not sure, did i miss anything important?
All in all it is a great fit for the theme and the whole atmosphere is pretty spooky. Guess with some polishment this could become pretty fun.
Btw: The app name on the quest is somehow totally unrelated to your name here, made it a bit hard to find (because i installed a few apks of the jam at once). No problem at all, just that you know :-)