The following is a list of unproduced stories in whatever form, although they were known to be considered at some point. Some of them were later released in another form.
TV stories
Season 1
- The Giants (replaced by TV: An Unearthly Child)
- The Masters of Luxor (replaced by TV: The Daleks)
- The Hidden Planet (replaced by TV: The Sensorites)
- The Red Fort (replaced by TV: The Reign of Terror)
- Britain 408 AD
- Farewell Great Macedon (adapted into AUDIO: Farewell, Great Macedon)
- The Fragile Yellow Arc of Fragrance (adapted into AUDIO: The Fragile Yellow Arc of Fragrance)
Season 2
Season 4
- The Clock
- The Imps (replaced by TV: The Highlanders, adapted into PROSE: Mission to Venus)
- The Big Store (adapted into TV:The Faceless Ones)
- The Ants
- Bar Kokhba
Season 6
- The Aliens In the Blood (adapted into the non-Doctor Who audio Aliens in The Mind)
- The Dreamspinner (replaced by TV: The Invasion)
- The Laird of McCrimmon
Season 7
Season 8
Season 9
- The Brain-Dead
- The Daleks in London (replaced by TV: The Time Monster)
Season 11
- The Automata
- The Final Game (replaced by TV: Planet of the Spiders)
Season 13
Season 14
Season 15
- Killers of the Dark (replaced by TV: The Invasion of Time)
Season 17
Season 18
- The Castle of Doom (replaced by TV: The Leisure Hive)
Season 19
- Project Zeta Sigma (replaced by TV: Castrovalva)
- Genesis of the Cybermen (inspired AUDIO: Spare Parts)
Season 21
- Circus of Destiny
- Hex (adapted into AUDIO: Hexagora)
Season 22
- Cat's Cradle (adapted into PROSE: Cat's Cradle: Time's Crucible)
- The Macro Men (adapted into AUDIO: The Macros)
Season 23
- The Nightmare Fair (1st episode, adapted into PROSE: The Nightmare Fair and AUDIO: The Nightmare Fair)
- The Ultimate Evil (2nd episode, adapted into PROSE: The Ultimate Evil)
- Mission to Magnus (3rd episode, adapted into PROSE: Mission to Magnus and AUDIO: Mission to Magnus)
- Yellow Fever and How to Cure It (4th episode)
- The Hollows of Time (5th episode, adapted into AUDIO: The Hollows of Time)
- The Children of January (6th and final episode)
Season 23: The Trial of a Time Lord
- Attack from the Mind (replaced by TV: Terror of the Vervoids)
Season 26
- Shrine (replaced by TV: Ghost Light)
- Illegal Alien (adapted into PROSE: Illegal Alien)
- Alixion
Season 27
- Earth Aid (1st episode, adapted into AUDIO: Earth Aid)
- Ice Time (2nd episode, adapted into AUDIO: Thin Ice)
- Crime of the Century (3rd episode, adapted into AUDIO:Crime of the Century)
- Hostage (adapted into PROSE: The Pit)
- War of the Daleks (adapted into PROSE: War of the Daleks)
- Alixion
Season 28
- Avatar
- Hostage (adapted into PROSE: The Pit)
- Network (inspired AUDIO: The Rani Elite)
- A School for Glory
30th anniversary
- Lost in the Dark Dimension (replaced by TV: Dimensions in Time)
- Destination: Holocaust (replaced by TV: Dimensions in Time)
- The Endgame (replaced by TV: Dimensions in Time)
Amblin Reboot
- The Pirates (an adaptation of TV: The Smugglers)
- The Talons of Weng-Chiang (an adaptation of the previously aired story by the same name)
- Earthshock (an adaptation of the previously aired story by the same name)
- The Horror of Fang Rock (an adaptation of the previously aired story by virtually the same name)
- The Celestial Toymaker (an adaptation of the previously aired story by the same name)
- Don't Shoot, I'm the Doctor! (a more historically accurate version of The Gunfighters)
- Tomb of the Cybs (an adaptation of Tomb of the Cybermen)
- The Yeti (an adaptation of The Abominable Snowmen)
- The Ark in Space (an adaptation of the previously aired story by the same name)
Series 2
Series 4
- Century House (replaced by TV: Midnight)
Series 5
- Death to the Doctor (replaced by TV: The Lodger)
Webcast
- Blood of the Robots (second of the "Shalka" trilogy)
Film
- Third Peter Cushing Dalek movie
- Doctor Who Meets Scratchman
Audio
- Journey into Time (1st of 52 stories)
Prose
BBC Past Doctor Adventures
Lethbridge-Stewart
- Horror of Det-Sen (2nd volume)