blissful ibex
Hear me out. Lets make this game more scary by adding a giant spider (or any other creature, incase spiders are too scary) thats not sensitive to how close you are, but how much noise youre making. Lets say the heavier your bag, the louder your steps are. A good area for him would be near the teleporter after the zero gravity room.
If that sounds bad, then how about a weeping angel/SCP 173/coilhead situation were you have to look at a statue or else itll move closer to you, eventually causing your death.
craggy gulch
shy tangle
half basalt