a walk in the hallways

This is set up as a classic piece of “explore a weird and architecturally impossible house” horror, and the uncanniness does escalate nicely, especially if you decide to turn back at any point. Instead of reaching a spooky climax, however, the endings present situations that are merely sort of odd, and the PC’s muted reaction (“Huh.”) contributes to the draining of tension.

I suppose it feels a little like games you play as a child to try to scare yourself, or even just the experience of walking down the hall to the bathroom at night at an age where that passes for spooky. Coming out in the light and finding nothing too badly amiss is somewhat fitting for that kind of vibe. But as a grown-up I think I’d prefer some actual payoff.