Surprisingly polished: awesome world design, fair puzzles, great difficulty progression. I enjoyed this. It gave my brain a good workout.

Compared to other games, I'd say this is a bit expensive, but on a 50%-off sale it'd be well worth it.

On to the bad side: though the puzzles are polished, there are a lot of technical annoyances: as soon as you start interacting with puzzles your mouse sensitivity drops massively. It feels awful. Some puzzles had me picking up my mouse to move back to the other side of the mouse pad several times just to drag something half-way across the screen. Also, performance is bad: In some areas even a 3090 TI will fall below 50 FPS when shadows are set to High. Switch to Medium and suddenly it's smooth 120+FPS. The game physics seems to have a different frame-rate. Sometimes the graphics were at 120FPS but half the things on screen were juddering as if it were sub-30FPS. Sometimes I would enter the right input for a puzzle and it wouldn't be recognized because something was invisibly slightly out of place.

Also, if you know anything about electronics or quantum computing, you'll find it a lot easier as the puzzles mostly resemble textbook exercises from those fields. I still enjoyed the brain workout despite it not introducing any new concepts to me though.

Surprisingly polished: awesome world design, fair puzzles, great difficulty progression. I enjoyed this. It gave my brain a good workout. Compared to other games, I'd say this is a bit expensive, but on a 50%-off sale it'd be well worth it. On to the bad side: though the puzzles are polished, there are a lot of technical annoyances: as soon as you start interacting with puzzles your mouse sensitivity drops massively. It feels awful. Some puzzles had me picking up my mouse to move back to the other side of the mouse pad several times just to drag something half-way across the screen. Also, performance is bad: In some areas even a 3090 TI will fall below 50 FPS when shadows are set to High. Switch to Medium and suddenly it's smooth 120+FPS. The game physics seems to have a different frame-rate. Sometimes the graphics were at 120FPS but half the things on screen were juddering as if it were sub-30FPS. Sometimes I would enter the right input for a puzzle and it wouldn't be recognized because something was invisibly slightly out of place. Also, if you know anything about electronics or quantum computing, you'll find it a lot easier as the puzzles mostly resemble textbook exercises from those fields. I still enjoyed the brain workout despite it not introducing any new concepts to me though.