I don't want to sound rude, but I feel like with your game making skills, you could make something much better than this.
This game is just a lot of popular horror trends mixed together and it doesn't make too much sense writing wise (It kinda feels like you're hopping on trends for popularity, sorry!!!), the mysterious game that you find is supposed to be made for old NES-like consoles but there are 3D characters and digital horror tropes (for example: Benny wants you to keep playing forever but freaks out when you click the only possible option and starts to give you his life story like KinnitoPET).
Again, the stuff you can do to make game look good is very impressive, but I think you should hire a new writer. (I know that this is just a demo and a lot may change but those are my impressions for now, take care)