I really enjoyed playing this game. The music and art was really nice.
The mystery was very intriguing and fun to uncover. The voice acting was incredible.
The only improvement I can suggest is that the terminal itself can be more intuitive. This mainly means more explanatory error messages other than "You can't do that". I also think tab to auto complete would make this game a lot more fun (and quicker).
Other than that, I think this was a great entry! Great job!