Death note.

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Light novels

A adaptation of the series has been written by , called . The novel was released by Shueisha on August 1, 2006. It serves as a prequel to the manga series, with Mello narrating the story of L's first encounter with Naomi Misora during the Los Angeles "BB Serial Murder Case" mentioned in volume 2 of the manga. Beside Naomi's character, the novel focuses on how L works and one of the criminals L has to chase down. Insight was given into Watari's orphanage and how the whole system of geniuses such as L, Mello, Beyond Birthday, Matt and Near were put to work. Viz released the novel in English on February 19, 2008. The film was also adapted into a light novel with the same name on December 25, 2007, by "M", While the novel is similar to the film, there are many significant changes to the plot (for example, Near is not a Thai boy, but the same Near that appears in the manga). It also reveals more information about L and his past. Viz released it on October 20, 2009.

Video games

A Death Note developed and published by for the , titled Death Note: Kira Game '(, Desu Nōto Kira Gēmu), was released on February 15, 2007. Kira Game is a where the player takes on the role of Kira or L. These are just titles, as any character can be Kira or L. The player will attempt to deduce who their enemy is (Kira will try to uncover L's identity and vice versa). This will play out in three phases: investigation, where the player will discuss the case and clues with other characters; voting, where each member of the investigation team casts a vote on who they suspect is L or Kira based on the player's performance in the previous phase; L/Kira, where the player can either focus their investigation on one member to see if they are Kira (L part), or force a member off of the team (Kira part). A sequel to the game, Death Note: Successors to L Desu Nōto Eru o Tsugu Mono), was released in Japan on July 12, 2007. The storyline is based on the second part of the manga, featuring characters such as Mello and Near.

A third game, L the Prologue to Death Note -Spiraling Trap- (L the proLogue to DEATH NOTE -, L the proLogue to DEATH NOTE -Rasen no Wana-), was released for the Nintendo DS in Japan on February 7, 2008. The player assumes the role of a rookie FBI agent who awakens in a strange hotel and attempts to escape with the help of L, who provides assistance via an in-game PDA. The story is set before the Kira investigation in the original series.

Several characters from Death Note appear in and , a featuring multiple characters from titles. Light, Ryuk, and L appear in Jump Super Stars as support characters. Misa, Near, and Mello are added as support characters in Jump Ultimate Stars as well. The 2019 video game features Light and Ryuk as non-playable characters, playing a key role in the game's story mode.

Live action filmsMain articles: , , , , , and

Death Note was adapted into a series of live action films in 2006. The first two films were directed by and the third was directed by and produced by , CG production of all three films were done by and distributed by Pictures Japan. The first film, simply titled , premiered in Japan on June 17, 2006, and topped the Japanese for two weeks, pushing into second place. The first film briefly played in certain North American theaters on May 20–21, 2008 The film was broadcast in Canadian theaters for one night only on September 15, 2008. The DVD was released on September 16, 2008, one day after the Canadian showing. The sequel, , premiered in Japan on November 3, 2006. It was featured in U.S. theaters in October 2008.

A spin-off from the films named was released in Japan on February 9, 2008. It is focused on the final 23 days of L's life, as he solves one final case involving a bio-terrorist group. Two dubbed versions of the film were shown in the United States on April 29 and 30, 2009.

In August 2016, a three-part miniseries entitled was announced as a part of the Death Note live-action film series and aired in September. It bridges the 10-year gap between the previous films and the then-upcoming 2016 film. A was released in 2016 and featured a cyber-terrorism setting with the inclusion of six Death Notes brought into the human world.

An was released on on August 25, 2017. The film was directed by and was written by Charles Parlapanides, Vlas Parlapanides, and . It starred , , , , , Jason Liles, and . It was rated by many negatively after its release, and ranked low on . A sequel film is reportedly in the works.