One thing I would like to say about is "Simplism".
The gameplay really fit together really well, the mood, lighting, even the character... All are being connected together, merging with the environment. Simple but complex...
The physic and visual calculation is optimized base on the how the game performed that smooth. The uniqueness lighting system with the ambient lighting affect the shadow, the light shaft and the skybox. Post - processing also did some magic here.
As my suggestion for the story progression, if someone ever ask me if this game is missing anything, I would say it is the ending, i mean the TRUTH ending like where the cube will go? Will it become what it is dream of and "fly high" or it will be stuck in a loop forever? This is what I want to know.
Lastly, I want to say thank you for let me play this.