I have mixed feelings about this. It isn't really a game - and admits as much - more of a low-stakes exploration simulator.
It is gorgeous. I couldn't believe my laptop was capable of rendering some of the scenes that it did. It worked perfectly on Linux running Wayland.
Overly moody and atmospheric with - thankfully - no jump scares.
But it starts really badly. About 10 minutes of non-skippable demo effects. I genuinely thought the game was broken. When it starts, there's no instructions. Luckily, it's just arrow keys and the mouse, nothing more complicated than that.
The whole experience takes about 45 minutes. Some of the rooms fade out just as they get interesting, other seem to drag on.
It's worth playing - and shows great promise as the basis for a future game. It is interesting without being entertaining.