I picked up this game on a whim when it went on sale some time ago, and while it's not very long (I completed it in three hours) it's unique enough to where I consider it merits a review of its own.
First off, let me nerd out at how good the ambiance is for a couple of paragraphs. The visuals are given sense by an excellent sound design, which kept me on edge for the duration of my playthrough; an achievement, considering the fundamentally abstract and calming nature of the setting. I didn't ever not feel like I was in an old, abandoned, alien place which might fall apart at any second, except when I finished the puzzle in the area and the whole place lighted up and started functioning again, but even then, the sense of foreboding was ever-present. Wide open areas get floaty synths that lurk just outside your hearing, punctuated by the slight pat pat pat
of the character's walking, and inside areas each have a soundtrack that fits in well with what's around you. Going in blind, I half-expected the game to throw in some jumpscares at me at some point or another, but the actual gameplay was very deliberate and focused around the "narrative".
The game also shines in its visuals. You might be thinking, "Well, yeah, the game markets itself as a puzzle/exploration game, it's bound to have some nice environments", but some areas are unique enough to actually merit a "Holly ♥♥♥♥, this is amazing". This makes the actual gameplay suffer at times, though, as you're made to slowly walk up and down a ramp to press at buttons to try to figure the room's huge puzzle in an epic journey that was evidently designed to show off every possible angle of the room with no regards to how long it might take to get from one place to another.
The actual puzzles themselves, the main focus of the game, is where it's a bit lacking. For all the praise I might sing of its visuals and environments, it's a bit hard to justify some of the choices regarding their design. I found myself having to constantly check at the in-game hints and a guide I kept handy to figure out the worst of them. There's a special variety that I particularly loathed, which are the kind of puzzle that required you to move against a timer over pressure pads on the floor in a particular pattern, which was made very infuriating with the character's tendency to slide around as if the floor was iced over. I'd say this is the area of the game where it's at its weakest.
I mentioned the game's narrative with quotation marks earlier on in this review, and that is because it's entirely possible to ignore it and never know anything about it, as it's never actually presented to you. It's just "there", and it doesn't care if you pick up on it or not. It's perfectly fine with sitting alone above the dusty door-frame of the room you just dismissed as pure eye candy and never having anything to do with you. It's not terribly complicated or unique, but it gives a sense to your running around, so I do recommend you take the time to trying to figure it out.
Should you buy this game? If you can overlook that it's quite average as puzzle games go, and instead want to be awed by the amazing environments and architecture that it provides, sure, go for it. If not, you'll probably be wasting your money.
I should also mention that it runs excellently in lower-end computers. So there's that.