Really well made game, although maybe a little bit boring at times. The controls are nice and responsive and the short story with a dark twist is a nice addition.
I would maybe like to see more puzzle-like climbing - at the time you mostly just climb up, maybe some not so linear paths would be awesome for future game. Also is the fog effect intentional or as an optimisation? Because I think the game would look stunning without it.
Overall, short and sweet game, perfect for couple of free minutes in the evening. <3