Murder on the Orient Express retains the main plot elements of Agatha Christie's novel of the same name. An additional ending is presented in the game which differs from the conclusion of Christie's novel. As with And Then There Were None, Christie's novel has been bundled with the game. Some reviewers of Murder on the Orient Express criticized the game because of the repetitive nature of tasks the player must complete, and also complained about the inefficient and cumbersome inventory system. Others have praised it for improved graphics compared to And Then There Were None, as well as convincing voice acting and audio effects. Murder on the Orient Express is followed by Agatha Christie: Evil Under the Sun, the third installment in the Agatha Christie series.