In the
mythology of the series,
Earth is one of countless worlds in the
multiverse, created from the primordial
Storytime by the dreaming of a
being known as Lux, the First Dreamer.
[17] Earth, or "Stark" as it is known in the game, is a world of
science existing in Balance with its "Twin World" of
magic, Arcadia, separated from it by the impassable Divide twelve millennia ago. The game takes place in
2220 CE by Stark's reckoning, and its chief antagonist is Brian Westhouse, a Starkian trapped in Arcadia, who plans to return home by forcibly reuniting the Twin Worlds with the power of the Undreaming, the destructive counterpart to Lux. To strengthen the Undreaming with
dream energy, Westhouse, as "the Prophet", conspired with the corrupt officials of the Azadi Empire in Arcadia and an ambitious Starkian scientist Helena Chang to build a giant dream-storing Engine in the recently-conquered Arcadian city-state of Marcuria and to imbue it with the dream energy stolen from Stark by Chang's
lucid dream-inducing inventions, the "Dreamachines". Chang had also secretly planned to instead use the stolen dream energy to reshape reality itself with the help of her
genetically engineered "Dreamers", i.e. humans with powers equal to Lux. She had deemed her first artificial Dreamer a failure, however, and the girl was instead raised by Chang's partner Gabriel Castillo as his own daughter, Zoë.
[18]
In
Dreamfall, a 20 year-old Zoë learned that Chang's sponsors, the Japan-based
megacorporation WatiCorp, planned to
brainwash the Dreamachine users in a bid for world domination, but failed to stop them and was put in a coma by Chang. At the same time in Arcadia, an elite Azadi operative Kian Alvane investigated the corruption in Marcuria but was charged with
high treason and imprisoned. In
Chapters, their stories continue independently, first converging in Book Five, which also ties in the arc of the third
playable character, Saga, until then told mainly in Interludes