Expansion

**Expansions** are additional content that build upon the core set of Arkham Horror: The Card Game. The major type of expansion is the "cycle" expansion that is build around multiple packs that center on a new campaign. Additional types of expansions include standalone scenarios and investigator starter decks.

All expansions to Arkham Horror: TCG require at least the core set to play.

## Cycles

Cycles are the main form of expansion for Arkham Horror: The Card Game. They are based around a central themed campaign, which is released in stages. The first stage is through a *deluxe expansion*. This includes the opening scenarios for the campaign, new investigators and associated cards. The cycle is continued through six smaller "Mythos Packs" that include the subsequent scenarios as well as additional player cards.

Upgrade sets for expansions have also been released. These upgrade and modify campaigns allowing for a new and more challenging experience.

In 2021 the Edge of the Earth expansion saw a change in the release model. Instead of a large deluxe followed by multiple smaller packs the cycle was split into two large expansion sets. One for the campaign containing the scenario cards and the other for the investigators, containing the player cards. FFG later announced that the previous cycles will be re-released in this format with the first, The Dunwich Legacy, due in Q1 2022.

* Core Set
	+ Return to the Night of the Zealot (upgrade expansion)
* The Dunwich Legacy  (deluxe expansion)
	+ The Miskatonic Museum (Mythos Pack)
	+ The Essex County Express (Mythos Pack)
	+ Blood on the Altar (Mythos Pack)
	+ Undimensioned and Unseen (Mythos Pack)
	+ Where Doom Awaits (Mythos Pack)
	+ Lost in Time and Space (Mythos Pack)
	+ Return to the Dunwich Legacy (upgrade expansion)
* The Path to Carcosa  (deluxe expansion)
	+ Echoes of the Past (Mythos Pack)
	+ The Unspeakable Oath (Mythos Pack)
	+ A Phantom of Truth (Mythos Pack)
	+ The Pallid Mask (Mythos Pack)
	+ Black Stars Rise (Mythos Pack)
	+ Dim Carcosa (Mythos Pack)
	+ Return to the Path to Carcosa (upgrade expansion)
* The Forgotten Age  (deluxe expansion)
	+ Threads of Fate (Mythos Pack)
	+ The Boundary Beyond (Mythos Pack)
	+ Heart of the Elders (Mythos Pack)
	+ The City of Archives (Mythos Pack)
	+ The Depths of Yoth (Mythos Pack)
	+ Shattere Aeons (Mythos Pack)
	+ Return to the Forgotten Age (upgrade expansion)
* The Circle Undone  (deluxe expansion)
	+ The Secret Name (Mythos Pack)
	+ The Wages of Sin (Mythos Pack)
	+ For the Greater Good (Mythos Pack)
	+ Union and Disillusion (Mythos Pack)
	+ In the Clutches of Chaos (Mythos Pack)
	+ Before the Black Throne (Mythos Pack)
	+ Return to the Circle Undone (upgrade expansion)
* The Dream-Eaters  (deluxe expansion)
	+ The Search for Kadath (Mythos Pack)
	+ A Thousand Shapes of Horror (Mythos Pack)
	+ Dark Side of the Moon (Mythos Pack)
	+ Point of No Return (Mythos Pack)
	+ Where the Gods Dwell (Mythos Pack)
	+ Weaver of the Cosmos (Mythos Pack)
* The Innsmouth Conspiracy  (deluxe expansion)
	+ In Too Deep (Mythos Pack)
	+ Devil Reef (Mythos Pack)
	+ Horror in High Gear (Mythos Pack)
	+ A Light in the Fog (Mythos Pack)
	+ The Lair of Dagon (Mythos Pack)
	+ Into the Maelstrom (Mythos Pack)
* Edge of the Earth
	+ Edge of the Earth Campaign Expansion
	+ Edge of the Earth Investigator Expansion

## Standalone scenarios

Standalone scenarios are scenarios that are not part of a campaign. While they are not part of a campaign they can be included as a side adventure between scenarios of a campaign.

* Curse of the Rougarou
* Carnevale of Horrors
* The Labyrinths of Lunacy
* Guardians of the Abyss (includes 2 linked scenarios)
* Murder at the Excelsior Hotel
* The Blob That Ate Everything
* Barkham Horror: The Meddling of Meowlathotep
* War of the Outer Gods
* Machinations Through Time

## Investigator starter decks

Investigator starter decks are packs that include an investigator and the player cards to build a deck for that investigator without needing to own any other piece of the game. The packs include 34 cards for a pre-build deck and an additional 26 cards that can be used to upgrade the deck.

* Nathaniel Cho Investigator Starter Deck (Guardian)
* Harvey Walters Investigator Starter Deck (Seeker)
* Winifred Habbamock Investigator Starter Deck (Rogue)
* Jacqueline Fine Investigator Starter Deck (Mystic)
* Stella Clark Investigator Starter Deck (Survivor)