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The first card + board expansion for Eldritch Horror . Requires the core set to play.

The Antarctic fog parted, and the towering mountain range suddenly became visible. The dark peaks reached impossibly high into the air, vast and foreboding. [...] Ursula felt certain no one had seen mountains that big before. Not until Professor Lake’s transmission a few days ago. A twinge of sorrow picked at her. Poor Lake. “What happened at the camp?” Ropes winced. “It was grim. Once the storm cleared and we were able to get there, everything had been torn apart. Everyone was dead. Dogs too. Some of the men had been gutted. [...] You ever hear of someone snapping like that?” Ursula’s jaw clenched. [...] Yes, she’d seen the horror that human madness could wreak. Still, how could one person manage so much bloodshed? If it wasn’t some madman, what else could have possibly been the source of such butchery? “There’s the opening,” Ropes pointed to a gap between the towering peaks. “You’re going to want to brace yourself for what’s on the other side.” He paused for dramatic effect. “It’s a city.”

Expansion Overview[]

MoM components

Mountains of Madness component overview

From the rulebook[]

The Mountains of Madness expansion leads investigators on the Miskatonic Expedition to Antarctica to discover the history of the elder things, an ancient alien race that was once the dominant species on Earth.

It includes new investigators, Ancient Ones, Monsters, and encounters to be used with Eldritch Horror. It also introduces entirely new mechanics including a new side board, Unique Assets, the Focus action, Task Assets, and of course, an adventure into the Mountains of Madness.

Mechanics[]

This expansion introduces Focus mechanics, Unique Assets and Preludes. It also introduces another new concept with its 12 Antarctica adventures.

Each card in this expansion is marked with the Mountains of Madness Mountains of Madness expansion icon at the bottom-left corner. Non-card components aren't marked with this icon.

Component list
Component Amount
Side Board Antarctica
Rulebook 1
Investigator Sheets with Matching Tokens and Plastic Stands 8
Ancient One Sheets 2
America Encounter Cards 4
Europe Encounter Cards 4
Asia/Australia Encounter Cards 4
General Encounter Cards 4
Other World Encounter Cards 6
Expedition Encounter Cards 6 (3 backs for 3 named City locations)
Special Encounter Cards 24 (3 backs for 2 Ancient Ones)
Research Encounter Cards 48 (2 backs for 2 Ancient Ones)
Outpost Encounter Cards 16
Mountain Encounter Cards 16
Antarctica Research Encounter Cards 16
Mythos Cards 26 (11 yellow, 9 green, and 6 blue)
Mystery Cards 14 (2 backs for 2 Ancient Ones)
Adventure Cards 12 (3 backs for each stage)
Artifact Cards 8
Asset Cards 16
Unique Asset Cards 42
Condition Cards 32
Spell Cards 16
Prelude Cards 6
Round Overview Cards 4
Monster Tokens 22 (14 normal, 8 epic)
Mystery Mystery Token 1
Clue Clue Tokens 6 (1 for each Antartic location)
Gate Tokens 6 (1 for each Antartic location)
Focus Focus Token 8
Doom Adventure token 1

Detailed Content[]

Ancient Ones[]

The expansion contains the 2 Ancient Ones below:

Elder Things[]

The Elder Things has 8 Mysteries listed here, 24 Research Encounter cards and 16 Special Encounter cards (A Dark God Final Mystery and Mysterious Disappearances). It uses the Antarctica board with its 32 encounter cards and 16 Antarctica research cards.

Elder Things
Mystery Type
An Alien Ritual An Alien Ritual Miscellaneous
An Expedition Compromised An Expedition Compromised Miscellaneous
At the Mountains of Madness At the Mountains of Madness Eldritch Tokens
Binding the Dark God Binding the Dark God Miscellaneous
Discovery of an Ancient Civilization Discovery of an Ancient Civilization Research Encounter
Invasion of the Elder Things Invasion of the Elder Things Item Requirement, Epic Monster
Mysterious Disappearances Mysterious Disappearances Special Encounter
The Dark God's Prison Crumbles The Dark God's Prison Crumbles Miscellaneous

Ithaqua[]

Ithaqua has 6 Mysteries listed here, 24 Research Encounter cards and 8 Special Encounter cards (Exploring Hyperborea).

Ithaqua
Mystery Type
A Spreading Storm A Spreading Storm Research Encounter
Exploring Hyperborea Exploring Hyperborea Special Encounter
Growing Hunger Growing Hunger Eldritch Tokens
Hyperborean Aurora Hyperborean Aurora Item Requirement, Miscellaneous
The Gnoph-Keh Attack! The Gnoph-Keh Attack! Research Encounter, Miscellaneous
Supplying the North Supplying the North Item Requirement, Eldritch Tokens

Investigators[]

This box contains the 8 Investigators below:

Artifacts[]

It contains the 8 Artifacts below:

Card Name Trait
Alien Device Alien Device Item
Crystal of the Elder Things Crystal of the Elder Things Item
Dhol Chants Dhol Chants Item — Tome
Eltdown Shards Eltdown Shards Item — Tome
Heart of Winter Heart of Winter Item
Hyperborean Crystal Hyperborean Crystal Item — Magical
Livre d'Ivon Livre d'Ivon Item — Tome
Pnakotic Manuscripts Pnakotic Manuscripts Item — Tome

Spells[]

The box contains 16 Spell cards listed here. Each spell has 4 variants.

Card Name Trait
Arcane Insight Arcane Insight Ritual
Banishment Banishment Ritual
Intervene Intervene Incantation
Storm of Spirits Storm of Spirits Incantation

Assets[]

It contains its 16 Asset cards, as we see here:

Card Name Trait Value
Astronomy Guidebook Astronomy Guidebook Item — Tome 2
Blunderbuss Blunderbuss Item — Weapon 2
Courier Needed! Courier Needed! Service 1
Cultist's Journal Cultist's Journal Item — Magical Tome 3
Gambler's Dice Gambler's Dice Trinket 3
Genealogy Research Genealogy Research Task 1
Investment Investment Task 1
Map of the Ley Lines Map of the Ley Lines Item — Tome 4
Mineralogy Research Mineralogy Research Task 1
Monster Hunter Monster Hunter Ally 3
Newspaper Report Newspaper Report Task 1
Patrolling the Streets Patrolling the Streets Task 1
Profane Tome Profane Tome Item — Tome 1
Secret Page Secret Page Item — Tome 2
Search the Archives Search the Archives Service 2
Tome of Horrors Tome of Horrors Item — Tome 3

Unique Assets[]

This expansion contains 42 Unique Assets, listed here:

Card Name Trait Count
Anna Tilton Anna Tilton Ally — Character 1
Antarctic Guide Antarctic Guide Ally 2
Constance Hawberk Constance Hawberk Ally — Character 1
Courier Run Courier Run Task 4
Danforth Danforth Ally — Character 1
Dog Sled Dog Sled Ally 2
Dr. Hiram Upham Dr. Hiram Upham Ally — Character 1
Esteban Herrero Esteban Herrero Ally — Character 1
Father Merluzzo Father Merluzzo Ally — Character 1
For the Greater Good For the Greater Good Task 3
Henry Wilcox Henry Wilcox Ally — Character 1
Kid O'Brien Kid O'Brien Ally — Character 1
Old Journal Old Journal Item — Tome 4
Professor Armitage Professor Armitage Ally — Character 1
Provisions Provisions Item 4
Purifying the World Purifying the World Task 3
Sacrifices to Make Sacrifices to Make Task 3
Sealing the Old Ones Sealing the Old Ones Task 3
Sir William Brinton Sir William Brinton Ally — Character 1
Walking the Ley Lines Walking the Ley Lines Task 3
William Dyer William Dyer Ally — Character 1

Conditions[]

It contains 32 Conditions cards, listed here:

Card Name Traits Count
Amnesia Amnesia Madness 1
Blessed Blessed Boon 1
Cursed Cursed Bane 1
Dark Pact Dark Pact Deal 1
Debt Debt Deal — Common 2
Detained Detained Restriction 1
Funding Funding Deal 4
Hunger Hunger Madness 4
Hunted Hunted Pursuit 4
Hypothermia Hypothermia Exposure 8
Infection Infection Illness 4
Internal Injury Internal Injury Injury 1

Monsters[]

The expansion contains 22 Monster tokens (14 normal, 8 epic).

Token Name Class Count
Child of the Goat Child of the Goat Normal 1
Crawling Chaos Crawling Chaos Epic 1
Crazed Elder Thing Crazed Elder Thing Epic 1
Cultist Cultist Normal 2
Dhole Dhole Normal 1
Flying Polyp Flying Polyp Normal 1
Ghast Ghast Normal 1
Giant Penguin Giant Penguin Normal 1
Hunting Horror Hunting Horror Normal 1
Ithaqua (token) Ithaqua Epic 1
Leng Spider Leng Spider Normal 1
Nctolhu Nctolhu Epic 1
Nctosa Nctosa Epic 1
Proto-Shoggoth Proto-Shoggoth Normal 1
Rampaging Shoggoth Rampaging Shoggoth Epic 1
Rhan-Tegoth Rhan-Tegoth Epic 1
Rat-thing Rat-thing Normal 1
Shan Shan Normal 1
Tcho-tcho Tcho-tcho Normal 1
Wendigo Wendigo Normal 1
Zombie Horde Zombie Horde Epic 1

Preludes[]

The box contains 6 Prelude cards listed here.

Prelude Mechanic used
Beginning of the End Azathoth
Doomsayer from Antarctica Elder Things or Antarctica adventures
Key to Salvation Task Unique Assets
Rumors from the North Ithaqua
Ultimate Sacrifice Defeated Investigators
Unwilling Sacrifice Character Unique Assets

Mythos[]

It also contains the 26 Mythos cards listed below:

Name Type Difficulty
A Brief Respite Yellow Easy
A Dark Path Green Hard
A Helping Hand Yellow Easy
Abandoned Goals Green Medium
Arcane Instability Yellow Medium
Call to Duty Green Easy
Cold Snap Yellow Medium
Cold White Silence Blue Medium
Crime in the Streets Yellow Hard
Devourer of Stars Blue Easy
False Bargain Green Medium
Hindering Agony Green Medium
Hunter Becomes the Hunted Yellow Medium
Impending Doom Yellow Hard
Losing Hope Green Hard
Mysterious Benefactor Yellow Easy
Outbreak! Yellow Hard
Prepared For Anything Green Easy
Ravenous Hunger Yellow Medium
The Crawling Chaos Blue Hard
The End is Nigh Yellow Hard
The Horror in the Museum Blue Medium
The Time Has Come Green Hard
Time is Running Out Blue Medium
Twin Spawn of Cthulhu Blue Hard
Vile Wounds Green Medium

Other[]

This expansion adds many other cards and tokens, but the most relevant additions are the following:

Gate Location Board Omen
The Amazon Main Board Red Omen red
City of the Elder Things Sideboard Blue Omen blue
Miskatonic Outpost Sideboard Red Omen red
Plateau of Leng Sideboard Red Omen red
The Pyramids Main Board Blue Omen blue
Tunguska Main Board Green Omengreen

Links[]

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