Ether One is a first person adventure that deals with the fragility of the human mind.
There are two paths in the world you can choose from. At its core is a story exploration path free from puzzles where you can unfold the story at your own pace.
There is also a deeper, more adventurous path in which you can complete complex puzzles to restore life changing events of the patient's history in order to help the validation of their life.
The choice is left to you.