Daedric War

The Daedric War is a storyline spanning several zones and questlines in that takes place after the events of the main quest with the defeat of Molag Bal. It involves the Daedric Princes Nocturnal, Mephala, and Clavicus Vile attempting to remake the mortal plane in their image. As they were not part to the Coldharbour Compact, they are free to meddle in worldly affairs. The set their sights first on Vvardenfell, and attempt to steal the power of a living god. Next, Nocturnal seeks out the Skeleton Key in Sotha Sil's Clockwork City, in an attempt to unlock the city and give her power over the wider world. Finally, the triad attacks Summerset, with hopes of using the Heart of Transparent Law to gain control of the Crystal Tower and remake reality according to their whims.

In order to stop Nocturnal, it takes no less than four Daedric Princes, two living gods, the Psijic Order, the Sapiarchs, wyresses, the Soulless One, and their followers. Sotha Sil manages to convince Mephala and Clavicus Vile to cease interfering in Nirn, at least directly.

Quests
In chronological order:


 * The Sweetroll Killer


 * The Missing Prophecy


 * Veya Releth storyline:


 * Fleeing the Past
 * Of Faith and Family
 * A Purposeful Writ
 * Family Reunion


 * main storyline:


 * Divine Conundrum
 * Divine Inquiries
 * Divine Delusions
 * Divine Intervention
 * Divine Disaster
 * Divine Restoration
 * Divine Blessings


 * Of Knives and Long Shadows

main storyline:
 * To The Clockwork City
 * In Search of a Sponsor
 * The Strangeness of Seht
 * Deepening Shadows
 * Lost in the Gloam
 * Unto the Dark
 * Where Shadows Lie
 * The Light of Knowledge


 * Through a Veil Darkly


 * main storyline:


 * The Queen's Decree
 * A Pearl of Great Price
 * Buried Memories
 * The Tower Sentinels
 * The Dreaming Cave
 * Lost in Translation
 * A Necessary Alliance
 * The Crystal Tower
 * A New Alliance

Combatants

 * The Vestige
 * Vivec
 * Azura
 * Seryn of the Urshilaku
 * Sotha Sil
 * Divayth Fyr
 * Proctor Luciana Pullo
 * Razum-dar and the Aldmeri Dominion
 * Vanus Galerion
 * Psijic Order
 * Ritemaster Iachesis
 * Valsirenn
 * Lilatha
 * Meridia
 * Darien Gautier
 * Sadara-do
 * Sapiarchs of the Crystal Tower
 * Oracle Marieve

Triad
 * Nocturnal
 * Earl Tundilwen
 * Shrikes
 * Wraiths-of-Crows
 * Whispering Shadows cultists
 * Clavicus Vile
 * Chodala and Red Exiles (indirectly)
 * Barbas
 * Chancellor Gascone Dusant
 * Earl of Clavicus Vile
 * Skaafin
 * Mephala
 * Leythen
 * Spiderkith
 * Spider Daedra
 * Hoarvor Daedra
 * Court of Bedlam
 * Abyssal Cabal
 * K'Tora

Casualties

 * Abyssal Cabal
 * Chancellor Gascone (depending on quest choice)
 * Chodala
 * Darien Gautier (disappeared)
 * Iachesis
 * Leythen
 * Proctor Luciana (depending on quest choice)
 * Tundilwen