This is a great psychological horror game. I played through it tensely, with that feeling that something could happen at any moment. The atmosphere works well and delivers what's expected of the genre (which is kinda rare nowadays).
The game isn't for everyone, as the ending and meaning are quite conceptual and philosophical, without focusing on anything particularly solid, leaving it up to the player to create their own interpretation of what happened. I really like it, tho.
For those who enjoy 100%ing games, be prepared, because it has a "bug" that makes achievements only appear after you finish the game, and the exceptions are quite superficial. I'll create a guide to show you how to do the more rare ones, as there aren't any so far.
If I could suggest something, I would like to see more possible combinations of what could be done, like options that create new ones that I didn't see before.
It's a solid 8/10 game.