Play time: ~8 hours
This game is very abstract, but provides a very interesting environment for which to explore. I believe it definitely is worth playing for those seeking for exploration in truly unique (and lonely) settings.
The puzzles were not terribly challenging, but did require logic thinking to solve. Although, some were a bit more intuitive than others (but what would you expect in this type of a world the game takes place in).
The game is also family friendly - anyone can play this and take full investment in it. The price is also very fair, so I do encourage to at least give it a try
Time Played: 5-10 hours
Difficulty: Very Easy