The episode received universal acclaim and remains a high-water mark for the series:
: It is praised for its deep exploration of the Doctor's psyche and its unique, non-linear storytelling that emphasizes "taking the long way around". "Doctor Who" Heaven Sent (TV Episode 2015) - IMDb "Doctor Who" Heaven Sent(2015)
: It was nominated for the Hugo Award for Best Dramatic Presentation (Short Form) . The episode received universal acclaim and remains a
: Delivers a tour-de-force performance, essentially carrying the episode alone. He uses a "Mind Palace" version of the TARDIS to process his thoughts and solve the puzzle of the castle. "Doctor Who" Heaven Sent(2015)
: A creature manifested from the Doctor's childhood nightmares. It only moves when the Doctor is not looking or when he stops confessing.