Right now it's mostly mechanical, like, you don't do a lot other than walk around and find things, and while it's intended to be a short enough game to kind of get what I can out of that, I'm still trying to find some other angle to make it more exciting, I dunno. Dwelling on it. If it's not super long maybe that's all it needs anyway.
I do think the Nemesis angle needs more attention; you don't see it worked with much. Like, if one of the requirements is that the Nemesis-like can be encountered on an unscripted/non-set piece basis, the only other thing I can think of is like...Hellnight, maybe? I think the critter in that evolves during the game and is randomly encounterable. I'll have to keep it in mind as I keep making horror games, it is a good idea :D