Heh, I think I'd agree. I made this over six months, starting with the "Evil Cocomelon" premise. I went through three different versions of mechanics for the game before arriving at what you see now. I got stumped trying to "gamify" the premise, so I released it with the current puzzle system. I don't think I ended up doing the premise justice, but I did learn a bunch about horror, lighting, and the brass tacks of setting an atmosphere.
I've got an idea in my back pocket for another horror game. You work as a night shift nurse in a hospital, and a swarm of bugs arrives and lays eggs in people's eyeballs. Turns them crazy and / or into monsters. You have to survive and keep your patients alive the whole night. (I've got some irl experience as a nurse, so I can draw on that too.)