Fan-made Doom movies

Doom-based or inspired videos made by fans.

Filmed by camera

 * Doom Soundtrack (various Doom songs being played on a piano)
 * Ultimate Källarstrike

Animated

 * The Blair Imp Project
 * Carmac's Condition
 * Doom - Captur The Flag
 * The Doom Project
 * Masters of Doom: The Animated Series
 * Ultimate Doom Fantasy

Game recordings

 * Doom II Speedrun
 * Doom E1 Nightmare speedruns
 * Plutonia MAP32 Nightmare World Record

Machinimas

 * How Not To Be Seen! (based on a Monty Python sketch)
 * Imp Encounter
 * The Ultimate Doom Burger (a parody of Nickelodeon's Good Burger)

Hybrids
Note: these shorts make use of multiple methods for making them.
 * Doom at the Roxbury (music video to the song "What is Love" by Haddaway; also a parody of the movie Night at the Roxbury in which Haddaway's song is the flagship song of the movie's soundtrack.)

Sites/accounts with multiple videos

 * DoomFilm at YouTube
 * fragglet at YouTube (Simon "fraggle" Howard's account)
 * SamuraiClinton at YouTube (Clinton Moore's account; has a whole assortment of animations, some of them are based on the game DOOM)