The plot follows Chris Eriksen, a young boy who creates the superhero alter ego Captain Spirit to deal with the loss of his mother.

[2][5] One Saturday morning, Chris creates the superhero alter ego Captain Spirit and projects his imagination onto reality.

After an argument with his father, Chris falls from his treehouse, but mysteriously levitates instead of hitting the ground, and spots two boys watching from afar (who appear in Life Is Strange 2).

[8][9] Co-directors Raoul Barbet and Michel Koch collaborated with writers Christian Divine and Jean-Luc Cano to create the story and characters.

[20] Joe Juba of Game Informer concurred and appreciated the parable between Chris' imagination and its real life counterpart.

[21] Michael Leri, writing for Game Revolution, enjoyed playing as Captain Spirit, noting that the character's function to contrast the mundane "livens up interactions".

[23] GamesRadar+'s Andy Hartup commended that it is free-to-play, agreed with O'Connor about the script's succinctness, and said it contained charm and "genuine human drama".

[25] Adam Cook of VideoGamer.com wrote in his verdict, "As a teaser for Life is Strange 2, Captain Spirit does its job", citing its length as what it did well.