I was having not too bad a time with this. Even got jump scared once pretty good. But just a few things, if you're going to use terrain this way, make it clear which slopes you can walk up and which you can't. Like, put some stone cliffs or fences in the way as barriers. I was just getting used to the idea that slopes of a certain steepness can't be walked up. But then I reached a spot where I had to walk up a sheer slope.
Also, those houses have no collision on the garage door. I stopped playing when I walked inside one then got stuck trying to walk out the other side.