Doctor Who has often explored alternate universes, or 'what could have been' timelines, including the most recent story. While the classic series did this on ocassion, the new series has done it almost every season, it seems. Any favorites?
The Land of Fiction (The Mind Robber)-Where fictional reactions seemingly come to life, controlled by a "Master" whose brain is hooked up to some computers.
The Inferno world (Inferno)-A dark alternate world where the world is a despotic society and also where a drilling project is turning men into greenish hairy beasts and causing volcanic eruptions. The Doctor uses this knowledge to save his own world which is also doing the drilling.
The Arthur's Legends were real universe (Battlefield)-We didn't really see this alternate world but we saw it had knights using a mix of archaic and scientific technology, as well as a version of the Doctor (Or possibly a future incarnation from our universe) who was better known as Merlin.
"Pete's world" (Season 2 and 4)-The world where Rose's father was still alive, the Cybus Cybermen were created, and where she eventually ended up-twice. Sort of has it's own Doctor now, although he has a more mortal life as well.
The Year that never was ruled by the Master(Season 3)-A world where the Master was supreme ruler along with the Toclafane. Undone by the Doctor.
"Turn Left" universe (Season 4)-Created by the Trickster's bug thingy, a world where the Doctor died because h never met Donna.
The No stars universe caused by the TARDIS (Season 5)-The TARDIS destroyed most of the universe with the 'total event collapse' (Possibly related to the effects of the TV movie when the Eye of Harmony was opened), with only Earth surviving. The Doctor fixed this by rebooting the universe and also closing the cracks.
The all-history happening at once universe (Season 6)-The latest alternate reality from the last story.
The Gallifreyan Matrix (Various)-Not sure if this counts, as the Gallifreyan Matrix is somewhat of a computer simulation, akin in some ways to the Matrix movies, but also in some ways Star trek's holodeck. Contains many potentially dangerous illusions.
Others I missed...
The Land of Fiction (The Mind Robber)-Where fictional reactions seemingly come to life, controlled by a "Master" whose brain is hooked up to some computers.
The Inferno world (Inferno)-A dark alternate world where the world is a despotic society and also where a drilling project is turning men into greenish hairy beasts and causing volcanic eruptions. The Doctor uses this knowledge to save his own world which is also doing the drilling.
The Arthur's Legends were real universe (Battlefield)-We didn't really see this alternate world but we saw it had knights using a mix of archaic and scientific technology, as well as a version of the Doctor (Or possibly a future incarnation from our universe) who was better known as Merlin.
"Pete's world" (Season 2 and 4)-The world where Rose's father was still alive, the Cybus Cybermen were created, and where she eventually ended up-twice. Sort of has it's own Doctor now, although he has a more mortal life as well.
The Year that never was ruled by the Master(Season 3)-A world where the Master was supreme ruler along with the Toclafane. Undone by the Doctor.
"Turn Left" universe (Season 4)-Created by the Trickster's bug thingy, a world where the Doctor died because h never met Donna.
The No stars universe caused by the TARDIS (Season 5)-The TARDIS destroyed most of the universe with the 'total event collapse' (Possibly related to the effects of the TV movie when the Eye of Harmony was opened), with only Earth surviving. The Doctor fixed this by rebooting the universe and also closing the cracks.
The all-history happening at once universe (Season 6)-The latest alternate reality from the last story.
The Gallifreyan Matrix (Various)-Not sure if this counts, as the Gallifreyan Matrix is somewhat of a computer simulation, akin in some ways to the Matrix movies, but also in some ways Star trek's holodeck. Contains many potentially dangerous illusions.
Others I missed...
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