Best puzzle game I've played in a long time. Very pleasantly surprised by it - it's extensive, with lots of different locations, lots of puzzles of differing types, attractive graphics and none of the hideous linguistic errors so common in other games. It's challenging but not impossible, plenty of hints if you need them, & the music & sound effects are atmospheric without being obtrusive. Look, it's not the quality of Room or Myst, obvs, but it still deserves 5 stars.