Online:Chapters

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Chapters are large expansions for Elder Scrolls Online. Newly-released Chapters cannot be purchased with Crowns and are not included in ESO Plus subscriptions, but are rather available from other online stores (bought separately for those who already have an ESO account, or with the full game) or newly issued retail copies of the game. Full retail versions of new Chapters include the previous Chapters, while upgrade versions do not. Sections of older Chapters usually become available through ESO Plus and the Crown Store as DLC one year after the initial release. A large zone is always included in each Chapter.

Morrowind
 
:A dread shadow hangs over Morrowind, portending doom even as Red Mountain shudders and quakes. Travel to Vvardenfell and aid the priests of Vivec in this new region full of prophecy, Dark Elf rivalries, and ancient traditions.
Morrowind was the first Chapter of The Elder Scrolls Online. It is an expansion set on the island of Vvardenfell. Morrowind includes a new large zone, the Warden class, the PvP mode Battlegrounds, a Trial, and a new storyline centered around saving Vvardenfell from  's descent.

As of Update 18 and the release of Summerset, the Chapter is only available for retail purchase by buying the Standard Edition or ESO Collection bundles, and its contents have been divided between the base game and the Crown Store. Battlegrounds have moved to the base game, the Warden class is available as a Crown Store Upgrade, and the Vvardenfell zone has become a DLC, both available for purchase in the Crown Store and unlocked as part of an ESO Plus membership.

Features
 
 

Summerset
 
:By royal decree, the once-forbidden island of the High Elves has been opened, its Crystal Tower drawing travelers to its light. But dark forces from beyond and below are also interested in the mystic location in this new chapter set in the Summerset Isle.
Summerset was the second Chapter of The Elder Scrolls Online. It is an expansion set on the main island of Summerset Isles and Artaeum. The Chapter includes all-new zone packed with adventure, ability to join the  , a new crafting Skill Line related to jewelry, a new Trial, and a new storyline.

As of Update 22 and the release of Elsweyr, Summerset is now included with ESO Plus and can be purchased from the Crown Store. Certain promotional bonus content was available with Summerset; see the Queen's Bounty Pack and Collector's Edition for details.

Features
 
 

Elsweyr
 
:Venture to the land of the Khajiit in The Elder Scrolls Online: Elsweyr, our newest chapter, an epic story in an all-new zone. Face dread creatures from the past—Dragons!—and discover the dark skills of a new character class, the Necromancer, as you join with new friends and old enemies to save Elsweyr from war and devastation.
Elsweyr is the third Chapter of The Elder Scrolls Online. It is an expansion set in Northern Elsweyr. It was initially teased with a wrathstone tablet and letter from Abnur Tharn, and was announced on January 15th, with the tagline "The Season of the Dragon Approaches". Datamined text for the Chapter reads "ESO reaches new heights of storytelling with a war against the Dragons that unfolds and builds over four quarterly releases to an unexpected climax." A preview of the teaser trailer was released on January 9th after a stream, showing a Khajiit and Abnur Tharn finding a Wrathstone tablet.

Features
 
 

Greymoor
 
 
Features
 
 
Two new zones to explore: Western Skyrim and Blackreach: Greymoor Caverns
A gothic main story quest line that ties into the Dark Heart of Skyrim adventure
An intriguing new system: Antiquities
A massive new 12-player Trial: Kyne's Aegis
New world events: Harrowstorms
New delves, public dungeons, and stand-alone quests
Updates and quality-of-life improvements including a rework of the Vampire Skill Line (free for all ESO players)
 
 

Blackwood
 
 
:See Blackwood
 

High Isle
 
 
:See High Isle
 

Bundles
There are currently eight bundles available to purchase:
The Elder Scrolls Online Standard Edition (listed as The Elder Scrolls Online in the PSN and XBox stores): For new players, this version includes the base game and the Morrowind Chapter.
Summerset Digital Upgrade: For existing players, this version includes the Summerset Chapter.
'''Summerset Digital Collector's Edition Upgrade''': For existing players, this version includes the Summerset Chapter, and Collector's Edition bonuses.
Elsweyr Pre-purchase Standard Edition: For new players, this version includes the base game, the Morrowind, Summerset and Elsweyr Chapter, Rahd-m'Athra Horse, Blue Dragon Imp pet, one Baandari Pedlar Crate, the Noble Clan-Chief costume and Experience Scrolls & Treasure Maps.
Elsweyr Pre-purchase Digital Upgrade: For existing players, this version includes the base game, the Elsweyr Chapter, Rahd-m'Athra Horse, Blue Dragon Imp pet, one Baandari Pedlar Crate, the Noble Clan-Chief costume and Experience Scrolls & Treasure Maps.
'''Elsweyr Pre-purchase Digital Collector's Edition''': For new players, this version includes the base game, the Morrowind Collector's Edition, Summerset Collector's Edition and Elsweyr Chapter, Rahd-m'Athra Horse, Blue Dragon Imp pet, one Baandari Pedlar Crate, the Noble Clan-Chief costume, Experience Scrolls & Treasure Maps and exclusive Senche-Raht mount, Ashen Scar Jerboa pet, the Khajiiti Cultural emote pack, Dragonbone outfit style conversions and Archaic Lore Tablets memento.
'''Elsweyr Pre-purchase Digital Collector's Edition Upgrade''': For existing players, this version includes the Elsweyr Chapter, Rahd-m'Athra Horse, Blue Dragon Imp pet, one Baandari Pedlar Crate, the Noble Clan-Chief costume, Experience Scrolls & Treasure Maps and exclusive Senche-Raht mount, Ashen Scar Jerboa pet, the Khajiiti Cultural emote pack, Dragonbone outfit style conversions and Archaic Lore Tablets memento.
The Elder Scrolls Online Collection: The bundle includes the base game, both Morrowind and Summerset Chapters, four DLC game packs: Imperial City, Orsinium, Thieves Guild, and Dark Brotherhood, and a Palomino Horse mount.

Notes
Chapters can be found under the "Stories" tab of Collections, along with Dungeon DLC and Zone DLC. Presently, only Greymoor is found under "Chapters", and Morrowind, Summerset and Elsweyr have been moved to "Zone DLC".
When asked about possible areas of Tamriel for future Chapters, Matt Firor mentioned that much of  , much of  , and half of   had not been done as zones yet.  When asked about the ESO roadmap and whether the studio had plans for what to do once it had covered all of Tamriel in future Chapters, Rich Lambert replied: “One of the beauties of The Elder Scrolls universe is it’s not just tied to Tamriel. Tamriel is the giant main continent. There are other continents [and] there are also the infinite worlds of Oblivion that you can go and explore as well.” 
Each Chapter has had a codename used on its various files prior to release in order to keep its true name a secret before it is officially announced. They are:
Volcano - Morrowind (VRD)
Glacier - Summerset (SUM)
Mesa - Elsweyr (ELS)
Scarp - Greymoor (SKR)
Badlands - Blackwood (BAD)
Dune - High Isle (SYS/HI)

Bugs
 

References