Which Expansion

Arkham Horror: The Card Game expansions

Base game: 1–4 players45–180 minFantasy Flight Games21 expansions checked
  1. #1 overall

    Arkham Horror: The Card Game – Edge of the Earth Investigator Expansion

    Buy this first

    BGG 'Best Investigator Expansions?' replies call it hands down the best box for building a card pool; it was also the first box sold in the new investigator/campaign format.

    Needs: Just the base game

    Adds: 5 investigators (Daniela Reyes, Norman Withers, Monterey Jack, Lily Chen and Bob Jenkins) plus the full set of player cards and deckbuilding options for the Edge of the Earth cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  2. #2 overall

    The Dunwich Legacy Campaign Expansion

    Buy this first

    BGG replies repeatedly name Dunwich as the first campaign to buy: a gentle step up from the core with no big new rules, so new groups are not overwhelmed.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: The full 8-scenario Dunwich Legacy campaign in one box: hunt for missing Miskatonic professors around Dunwich, with a spiral-bound campaign guide.

    Fixes: The core set has only one short campaign; this is the natural next full-length story.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $60–$100
    DetailsBuy:Miniature Market
  3. #3 overall

    Arkham Horror: The Card Game – The Dunwich Legacy Investigator Expansion

    Worth it

    Reddit buyers advising new players say to do Dunwich first (investigator box plus campaign box) because its cards are cheap, flexible upgrades to the core set pool.

    Needs: Just the base game

    Adds: 5 investigators (Zoey Samaras, Rex Murphy, Jenny Barnes, Jim Culver and "Ashcan" Pete) plus the full set of player cards and deckbuilding options for the The Dunwich Legacy cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  4. #4 overall

    The Path to Carcosa Campaign Expansion

    Worth it

    Commonly recommended as the second campaign after Dunwich on BGG; IGN calls its added rules user-friendly for new players.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: The complete Path to Carcosa campaign: a cursed stage play of The King in Yellow drags investigators toward Carcosa, with heavy use of doubt/conviction story branches.

    Fixes: Gives groups that finished Dunwich a moodier, story-heavy campaign without a big rules jump.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $60–$100
    DetailsBuy:Miniature Market
  5. #5 overall

    Arkham Horror: The Card Game – The Drowned City Investigator Expansion

    Worth it

    Newest box and the one Asmodee still stocks directly; adds trait-based Specialist cards, so it is the easiest to buy at list price today.

    Needs: Just the base game

    Adds: 6 investigators plus the player cards and deckbuilding options for The Drowned City cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:AmazonFantasy Flight GamesAsmodee US+1 more
  6. #6 overall

    Edge of the Earth Campaign Expansion

    Worth it

    Liked by many, but a BGG reply warns it has a lot of bookkeeping and is not the best first campaign for new players.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: An Antarctic expedition campaign with expedition-team partner cards, tent/supply tracking and a branching route through the ice.

    Fixes: Adds a self-contained expedition story with more resource management than the early campaigns.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:Miniature Market
  7. #7 overall

    Arkham Horror: The Card Game – The Scarlet Keys Investigator Expansion

    Worth it

    Community picks rate its customizable upgrade cards highly, though BGG/Reddit replies note the box is more complex and better after a simpler box.

    Needs: Just the base game

    Adds: 6 investigators (Carson Sinclair, Vincent Lee, Kymani Jones, Amina Zidane, Darrell Simmons and Charlie Kane) plus the full set of player cards and deckbuilding options for the The Scarlet Keys cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  8. #8 overall

    The Scarlet Keys Campaign Expansion

    Worth it

    IGN highlights it as less linear than other campaigns; best once your group is comfortable with the core rules.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: A globe-trotting campaign against the Red Coterie with a world map, non-linear mission order and collectible keys.

    Fixes: Breaks the strictly linear scenario order of older campaigns; you choose where to travel next.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:Miniature Market
  9. #9 overall

    Arkham Horror: The Card Game – The Path to Carcosa Investigator Expansion

    Worth it

    Recommended in Reddit and BGG buying threads as the natural next box after Dunwich for a broad, classic card pool.

    Needs: Just the base game

    Adds: 6 investigators plus the player cards and deckbuilding options for The Path to Carcosa cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:AmazonFantasy Flight GamesMiniature Market
  10. #10 overall

    The Innsmouth Conspiracy Campaign Expansion

    Worth it

    IGN singles out the flood-level mechanic as an added strategic layer; a solid pick after the first two campaigns.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: The Innsmouth campaign: flooding locations that change as water levels rise, memory flashbacks and the Deep Ones' conspiracy.

    Fixes: Adds a dynamic flood mechanic so maps shift during play.

    Expansion1–4 playersAdds more rulesFine for any groupPrice: $60–$100
    DetailsBuy:Miniature Market
  11. #11 overall

    Arkham Horror: The Card Game – The Feast of Hemlock Vale Investigator Expansion

    Worth it

    Recent box with new-format cards; community threads rank it below Edge of the Earth and Dunwich as a first pick.

    Needs: Just the base game

    Adds: 5 investigators (Wilson Richards, Kate Winthrop, Alessandra Zorzi, Kōhaku Narukami and Hank Samson) plus the full set of player cards and deckbuilding options for the The Feast of Hemlock Vale cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  12. #12 overall

    The Feast of Hemlock Vale Campaign Expansion

    Worth it

    IGN describes its day/night structure as a fresh dynamic; a good later pick for groups wanting variety.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: A three-day campaign on an island village preparing for a festival, with day/night phases and town residents you build relationships with.

    Fixes: Adds a hub-style campaign where day and night play differently.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $60–$100
    DetailsBuy:Miniature Market
  13. #13 overall

    Arkham Horror: The Card Game – The Circle Undone Investigator Expansion

    Depends on your group

    Good investigators but several are build-around (Preston, Carolyn); thread replies suggest it once you know which archetypes you enjoy.

    Needs: Just the base game

    Adds: 6 investigators (Carolyn Fern, Joe Diamond, Preston Fairmont, Diana Stanley, Rita Young and Marie Lambeau) plus the full set of player cards and deckbuilding options for the The Circle Undone cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  14. #14 overall

    The Drowned City Campaign Expansion

    Worth it

    IGN lists it as the newest Chapter One campaign; FFG says it only needs the Revised Core Set to start.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: Explore R'lyeh as it rises from the ocean, with a story that changes based on your chosen investigators and a climactic fight against Cthulhu.

    Fixes: Gives veterans the newest Chapter One campaign and an end-game confrontation with Cthulhu.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:AmazonAsmodee US StoreMiniature Market
  15. #15 overall

    Arkham Horror: The Card Game – The Forgotten Age Investigator Expansion

    Depends on your group

    Solid exploration-era cards but frequently out of stock; buy it if you are also playing The Forgotten Age campaign.

    Needs: Just the base game

    Adds: 5 investigators (Leo Anderson, Ursula Downs, Finn Edwards, Father Mateo and Calvin Wright) plus the full set of player cards and deckbuilding options for the The Forgotten Age cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAbout the same rules loadBest for experienced groupsPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  16. #16 overall

    The Forgotten Age Campaign Expansion

    Depends on your group

    BGG and IGN both flag it as one of the hardest campaigns and not recommended for newcomers; buy it once your group has a campaign or two behind it.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: An Amazon-jungle expedition into a forgotten city, with exploration decks, poison and supply choices, and time-travel story threads.

    Fixes: Gives experienced groups a punishing, survival-flavored campaign.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:Miniature Market
  17. #17 overall

    Arkham Horror: The Card Game – The Innsmouth Conspiracy Investigator Expansion

    Depends on your group

    Bless/curse and spy cards are fun but niche; buying threads place it after the earlier cycles unless you want those mechanics.

    Needs: Just the base game

    Adds: 5 investigators (Sister Mary, Amanda Sharpe, Trish Scarborough, Dexter Drake and Silas Marsh) plus the full set of player cards and deckbuilding options for the The Innsmouth Conspiracy cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  18. #18 overall

    The Circle Undone Campaign Expansion

    Depends on your group

    BGG replies call it too difficult for new players and IGN calls it one of the tougher campaigns; great for veterans only.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: A witch-themed campaign into Arkham's past: the Silver Twilight Lodge, missing persons and spectral 'Witching Hour' mechanics.

    Fixes: Adds a darker, harder story for veterans.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:Miniature Market
  19. #19 overall

    Arkham Horror: The Card Game – The Dream-Eaters Investigator Expansion

    Most groups can skip

    Investigators like Patrice and Luke play very differently from the norm; community advice is to pick it up only for those investigators or the matching campaign.

    Needs: Just the base game

    Adds: 5 investigators (Tommy Muldoon, Mandy Thompson, Tony Morgan, Luke Robinson and Patrice Hathaway) plus the full set of player cards and deckbuilding options for the The Dream-Eaters cycle.

    Fixes: Core-set card pool is thin; adds many more deckbuilding choices and investigators for any campaign.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $40–$60
    DetailsBuy:Fantasy Flight GamesMiniature Market
  20. #20 overall

    The Dream-Eaters Campaign Expansion

    Depends on your group

    BGG replies say it is probably not for new players because of its split two-campaign structure; IGN notes the two halves can be combined into one long campaign.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: Two interlocking 4-scenario campaigns set in the Dreamlands and the waking world, playable separately or combined into one 8-scenario story.

    Fixes: Offers shorter 4-scenario campaigns for groups that cannot commit to a full 8-part run.

    Expansion1–4 playersAdds more rulesBest for experienced groupsPrice: $60–$100
    DetailsBuy:AmazonOne Eyed Jacques
  21. #21 overall

    Children of Blood Small Campaign Expansion

    Depends on your group

    Newest and smallest box; designed around the 2025 Core Set, so Revised Core owners should check which core they own first.

    Needs: Needs the Arkham Horror: The Card Game core set (Revised Core Set or the 2025 Core Set).

    Adds: A short campaign box (fewer scenarios than a full campaign) released for the 2025 Chapter Two era of the game.

    Fixes: Gives owners a shorter campaign to play in a few sessions instead of a full 8-scenario commitment.

    Expansion1–4 playersAbout the same rules loadFine for any groupPrice: $40–$60
    DetailsBuy:AmazonAsmodee US Store

Need the base game?

Buy:Asmodee US Store

Check before you buy

  • Each cycle comes as two boxes: a Campaign Expansion (scenarios) and an Investigator Expansion (player cards). Buy them in pairs for the full cycle.

Stuck between two?

Arkham Horror: The Card Game expansions: quick answers

Which Arkham Horror: The Card Game expansion should I buy first?

Arkham Horror: The Card Game – Edge of the Earth Investigator Expansion. BGG 'Best Investigator Expansions?' replies call it hands down the best box for building a card pool; it was also the first box sold in the new investigator/campaign format.

Is Arkham Horror: The Card Game – Edge of the Earth Investigator Expansion worth it?

Our verdict: buy this first. It adds: 5 investigators (Daniela Reyes, Norman Withers, Monterey Jack, Lily Chen and Bob Jenkins) plus the full set of player cards and deckbuilding options for the Edge of the Earth cycle.

Arkham Horror: The Card Game – Edge of the Earth Investigator Expansion or The Dunwich Legacy Campaign Expansion: which first?

We’d buy Arkham Horror: The Card Game – Edge of the Earth Investigator Expansion first. See the side-by-side comparison for what each adds and needs.

Other games’ expansion guides

Same publisher

Rankings are our editorial picks, built from the reviews linked on each expansion page. Last checked 2026-10-08.