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Mythos Card

Back of a Mythos card

Mythos cards are a primary method through which the game will cause the investigators to lose. The third phase of every round is called the Mythos Phase, where a Mythos card is drawn from the Mythos deck. After the Lead Investigator has resolves its effects, play continues to a new round. There are three types of Mythos cards with three different difficulties.

Mythos Deck[]

At the start of the game, players must build the Mythos Deck from the Mythos cards available. The Mythos Deck is built according to the composition of Green, Yellow, and Blue Mythos cards as indicated on the Ancient One sheet being played.

Every Mythos deck is split into three separate Phases. Each Phase is created and shuffled independently of another, and then put back together with the third Phase on the bottom, the second Phase in the middle, and the first Phase on the top.

Before constructing the Mythos Deck, modify the difficulty of the deck as you wish. Then, separate the Green, Yellow, and Blue cards into three separate decks and shuffle each deck.

For each Phase, check the Ancient One sheet; draw a number of colored Mythos cards as specified by the Phase that you are constructing, and then shuffle these cards together, then set them aside. It is recommended that you construct the deck from Phase 3 to Phase 1 so that you can simply stack the Phases on each other when you are done constructing each.

Finally, recombine the Phases, and set aside the remaining Mythos cards; those cards will not be used for the current game.

Triggering a Mythos Card[]

See also: Reference card

When a Mythos card is drawn, the Lead Investigator resolves all of its icon effects from left to right as they are listed at the top bar of the Mythos card. After all icons effects have been resolved, the Mythos card's main effect should be resolved. If the card has the Event trait listed above the text effect, immediately resolve the effect and then discard the card. If it has the Ongoing trait, place it in play near the Ancient One sheet. It remains in play until discarded by a game effect.

If a Mythos card has the Reckoning icon in the lower-right corner, it is a reminder that the card has a Reckoning Reckoning effect. That card does not cause other Reckoning effects to be resolved. If a Monster is spawned or an investigator gains a component while investigators are resolving Reckoning Reckoning effects, they do not resolve the Reckoning effect on that Monster or component.[1]

Mythos Card Icons[]

Icon Name Symbol Effect
Advance Omen Advance Omen Move the Omen token clockwise 1 symbol around the track, then advance Doom by 1 for each Gate on the game board that matches the Omen token's current space.
Reckoning Mythos Reckoning Resolve all effects proceeded by a Reckoning icon on components in play. These components are marked with a red reckoning icon in the

lower-right corner as a visual reminder.

Resolve these effects in the following order: Monsters, Ancient One, Ongoing Mythos Cards, then lastly investigator possessions and Conditions. If there are multiple effects in the same order, resolve them in the order of your choosing.

Spawn Gates Spawn Gates Spawn a number of Gates according to the Reference card being used.
Monster Surge Monster Surge Spawn a number of Monsters on each Gate corresponding to the current Omen according to the Reference card being used. If no Gates are present that correspond to the current Omen, spawn 1 Gate instead.
Spawn Clues Spawn Clues Spawn a number of Clues according to the Reference card being used.
Spawn Rumor Space Place a Rumor token on the space indicated on this symbol.
Place Eldritch Tokens Place a number of Eldritch Tokens as listed on the symbol on the Mythos Card that triggered this effect.

Deck Depletion[]

If a Mythos Card needs to be drawn, but the Mythos Deck is empty, the Mythos Phase ends immediately. This will possibly trigger the solving of a final Mystery, in which case the investigators win the game. However, if investigators have not won by this point, they automatically lose the game.

Mythos Card Types[]

Green Mythos Card

Example of a Green, Hard Mythos Card

Green Mythos Cards[]

Green Mythos Cards are generally the second most common Mythos card; they will always cause the Omen to advance, trigger a Monster Surge, and spawn Clues.  The Monster Surge and spawning of Clues is determined by the Reference card being used.

Green Mythos cards will usually have an immediate event, although some will have an ongoing effect.

As of Masks of Nyarlathotep Masks of Nyarlathotep there are 78 Green Mythos Cards: 20 Easy, 37 Normal, 21 Hard. 

Yellow Mythos Card

Example of a Yellow, Easy Mythos Card

Yellow Mythos Cards[]

Yellow Mythos Cards are generally the most common Mythos card; they will always cause the Omen to advance, trigger a Reckoning Reckoning, and spawn Gates. The spawning of Gates is determined by the Reference card being used.

Yellow Mythos cards always trigger an immediate event.

As of Masks of Nyarlathotep Masks of Nyarlathotep there are 92 Yellow Mythos Cards: 22 Easy, 41 Normal, 29 Hard.

Blue Mythos Card

Example of a Blue, Normal Mythos Card

Blue Mythos Cards[]

Blue Mythos Cards are the least common Mythos card; they will always spawn Clues.

Blue Mythos cards always initiate a Rumor. Often, Eldritch token Eldritch tokens will be placed on the card in order to keep track of when the Rumor's fail effect triggers; the starting number of Eldritch Tokens, should they be required, is printed on the symbol on the top bar of the Mythos card.

As of Masks of Nyarlathotep Masks of Nyarlathotep there are 47 Blue Mythos Cards: 11 Easy, 19 Normal, 17 Hard.

Mythos Card Difficulties[]

Mythos cards are also differentiated by difficulty. Difficult Mythos cards are indicated by a red tentacle border around the Mythos card's name, while easy Mythos cards are indicated by a blue sigil border around the Mythos card's name. Mythos cards without a border around their name are "normal" difficulty.

If the players wish to make the game easier or harder, they may build the Mythos deck using cards only from one or more of these difficulty categories in order to modulate the difficulty of the game. For example, removing all difficult Mythos cards creates a Mythos deck consisting of only normal and easy difficulty Mythos cards, which will make the game easier to win.

List of Mythos[]

There are 217 Mythos across the base game and all expansions.

Name Type Difficulty Set
"Moved to Boston" Blue Easy 06
Signs of Carcosa
A Bomb in the Car! Yellow Medium 09
Masks of Nyarlathotep
A Breakthrough! Yellow Easy 06
Signs of Carcosa
A Brief Respite Yellow Easy 03
Mountains of Madness
A Dark Path Green Hard 03
Mountains of Madness
A Dark Power Yellow Medium
01Core
A Helping Hand Yellow Easy 03
Mountains of Madness
A Proposition Green Easy
01Core
Abandon Hope Yellow Hard 08
Cities in Ruin
Abandoned Goals Green Medium 03
Mountains of Madness
Accursed Fortune Green Medium 08
Cities in Ruin
Against All Odds Green Medium 04
Strange Remnants
All For Nothing Yellow Hard
01Core
Ancient Guardians Yellow Normal
01Core
Arcane Instability Yellow Medium 03
Mountains of Madness
Archaeological Breakthroughs Green Easy 05
Under the Pyramids
Arrests Made in Murder Case! Yellow Normal
01Core
At All Costs Green Medium 09
Masks of Nyarlathotep
Augur of Destruction Yellow Hard 08
Cities in Ruin
Awakening the Old Ones Blue Medium 06
Signs of Carcosa
Bad Karma Green Hard 08
Cities in Ruin
Bargain With Nyarlathotep Blue Hard 06
Signs of Carcosa
Beginning of the End Green Hard 04
Strange Remnants
Best Laid Plans Yellow Medium 08
Cities in Ruin
Best Man for the Job Yellow Medium 07
The Dreamlands
Blood Flows Green Medium
01Core
Blood Rites Yellow Hard 08
Cities in Ruin
Burden of Greed Yellow Normal
01Core
Burn It All Down Yellow Easy 08
Cities in Ruin
Buying Information Green Easy
01Core
Calamitous Fortune Yellow Hard 06
Signs of Carcosa
Call to Duty Green Easy 03
Mountains of Madness
Calling the Elder Things Green Medium
01Core
Candles in the Window Green Easy 08
Cities in Ruin
Cold Snap Yellow Medium 03
Mountains of Madness
Cold White Silence Blue Medium 03
Mountains of Madness
Collector's Gift Green Easy 09
Masks of Nyarlathotep
Corrupted Business Green Medium 04
Strange Remnants
Cosmic Backlash Green Easy 08
Cities in Ruin
Crime in the Streets Yellow Hard 03
Mountains of Madness
Curse of Knowledge Yellow Medium 05
Under the Pyramids
Dark Captivation Green Easy 09
Masks of Nyarlathotep
Death of Innocence Green Medium 09
Masks of Nyarlathotep
Desperate Times Yellow Hard
01Core
Devourer of Stars Blue Easy 03
Mountains of Madness
Did We Make It? Yellow Easy 05
Under the Pyramids
Dimensional Instability Green Medium
01Core
Dimensional Shift Green Medium 07
The Dreamlands
Dimensions Collide Blue Hard
01Core
Doorways to Tuonela Blue Medium 07
The Dreamlands
Down the Rabbit Hole Yellow Easy 07
The Dreamlands
Drawn Through the Gate Blue Easy 07
The Dreamlands
Drawn to Our World Blue Medium 02
Forsaken Lore
Dream of Lands Beyond Blue Medium 05
Under the Pyramids
Dreamcatcher Yellow Hard 07
The Dreamlands
Driven to Bankruptcy Green Medium
01Core
Driven to Madness Yellow Medium 02
Forsaken Lore
Echoes of a Past Life Green Easy 09
Masks of Nyarlathotep
Edge of Reason Yellow Easy 09
Masks of Nyarlathotep
Everyone Has a Price Yellow Easy
01Core
Everything Is Under Control Yellow Medium 06
Signs of Carcosa
Evil Never Sleeps Green Hard 02
Forsaken Lore
Exploring the Crater Blue Medium 08
Cities in Ruin
Eye of the Storm Blue Hard 04
Strange Remnants
Eyes Everywhere Yellow Hard
01Core
Faded From Society Blue Medium
01Core
Fair Winds Yellow Easy 09
Masks of Nyarlathotep
False Bargain Green Medium 03
Mountains of Madness
Far Corners of the Globe Blue Hard 04
Strange Remnants
Feast of Umordhoth Green Medium 09
Masks of Nyarlathotep
Food for Worms Green Hard 05
Under the Pyramids
For Good or for Evil Yellow Normal 04
Strange Remnants
Forgotten Knowledge Green Medium 05
Under the Pyramids
Fractured Reality Blue Easy
01Core
Framed for Murder Yellow Medium 07
The Dreamlands
From Bad to Worse Yellow Normal
01Core
From Beyond Green Hard
01Core
Fruit of Labor Yellow Easy 09
Masks of Nyarlathotep
Gate Burst Green Hard 07
The Dreamlands
Gaze Into The Abyss Yellow Hard 09
Masks of Nyarlathotep
Gaze of Ghatanothoa Yellow Hard 04
Strange Remnants
Ghostly Chanting Blue Hard 06
Signs of Carcosa
Glimmer of Hope Green Easy 04
Strange Remnants
Glimpse the Lurker Yellow Hard 05
Under the Pyramids
Growing Madness Blue Easy
01Core
Haunting Nightmares Yellow Normal
01Core
Heart of Corruption Green Easy
01Core
Heat Wave Singes the Globe Yellow Normal
01Core
Hideous Apparitions Yellow Medium 08
Cities in Ruin
Hindering Agony Green Medium 03
Mountains of Madness
Hunter Becomes the Hunted Yellow Medium 03
Mountains of Madness
I Am Legion Green Medium 06
Signs of Carcosa
Impending Doom Yellow Hard 03
Mountains of Madness
It Could Be Worse Green Medium 07
The Dreamlands
Lead Astray Green Medium 06
Signs of Carcosa
Leap of Faith Green Easy 07
The Dreamlands
Leave the Rest Behind Yellow Easy 09
Masks of Nyarlathotep
Legitimate Banking Green Medium
01Core
Losing Hope Green Hard 03
Mountains of Madness
Lost Knowledge Blue Easy
01Core
Madness From the Sea Blue Hard 05
Under the Pyramids
Mass Hysteria Yellow Medium 06
Signs of Carcosa
Milk of the All Mother Green Hard 05
Under the Pyramids
Mission Dolores Blue Easy 08
Cities in Ruin
Moment of Prescience Green Easy 07
The Dreamlands
Mysterious Benefactor Yellow Easy 03
Mountains of Madness
Mysterious Lights Blue Hard
01Core
Night Terrors Green Medium 09
Masks of Nyarlathotep
Nightmarish Dreams Blue Medium 07
The Dreamlands
No Peace For the Fallen Green Medium
01Core
No Time To Be Alone Green Hard 06
Signs of Carcosa
No Turning Back Green Hard 07
The Dreamlands
Old Wounds Yellow Medium 08
Cities in Ruin
Omen of Disaster Yellow Hard 07
The Dreamlands
Omen of Good Fortune Yellow Easy
01Core
Out of the Aeons Blue Medium 04
Strange Remnants
Outbreak! Yellow Hard 03
Mountains of Madness
Over My Dead Body Green Hard 06
Signs of Carcosa
Overabundance Yellow Medium 05
Under the Pyramids
Overwhelming Swarm Yellow Hard 04
Strange Remnants
Painful Memories Green Easy 06
Signs of Carcosa
Patrolling the Border Green Medium
01Core
Perplexing Stars Yellow Hard
01Core
Phantom of Truth Yellow Easy 06
Signs of Carcosa
Plague of Misfortune Yellow Hard 08
Cities in Ruin
Plague of Vampires Yellow Hard 06
Signs of Carcosa
Played for a Fool Yellow Medium 06
Signs of Carcosa
Prepared For Anything Green Easy 03
Mountains of Madness
Price Gouging Green Medium 06
Signs of Carcosa
Price of Progress Yellow Easy 04
Strange Remnants
Prophecy Fulfilled Yellow Medium 09
Masks of Nyarlathotep
Rally the People Yellow Easy
01Core
Ravenous Hunger Yellow Medium 03
Mountains of Madness
Relics of Old Blue Easy 04
Strange Remnants
Render of the Veils Blue Hard 07
The Dreamlands
Replaced By Another Green Hard 07
The Dreamlands
Return of the Ancient Ones Blue Medium
01Core
Return to G'harne Blue Hard 08
Cities in Ruin
Reversal of Fortune Yellow Hard 07
The Dreamlands
Righteous Calling Green Easy 04
Strange Remnants
Rigorous Training Yellow Easy 07
The Dreamlands
Rising Terror Green Hard
01Core
Safe Haven Yellow Easy 08
Cities in Ruin
Safely Guarded Secrets Blue Medium 04
Strange Remnants
Scavengers Blue Medium 07
The Dreamlands
Secrets of the Past Blue Easy
01Core
Shadow Beneath Chicago Blue Medium 05
Under the Pyramids
Shattered Magic Yellow Normal 04
Strange Remnants
Silver Twilight Aid Yellow Easy
01Core
Song of Spheres Blue Hard 07
The Dreamlands
Spa Resort Weekend Yellow Easy 08
Cities in Ruin
Spreading Corruption Blue Hard 09
Masks of Nyarlathotep
Spreading Sickness Blue Hard
01Core
Stars Aligned Blue Medium
01Core
Strange Affliction Yellow Medium 06
Signs of Carcosa
Strange Energies Green Medium 04
Strange Remnants
Strange Sightings Green Hard
01Core
Support of the Church Green Easy
01Core
Tainted Rations Green Medium 02
Forsaken Lore
Terrible Truth Yellow Normal 04
Strange Remnants
That Which Consumes Green Easy
01Core
The Bermuda Triangle Yellow Normal
01Core
The Contagion Blue Easy 05
Under the Pyramids
The Crawling Chaos Blue Hard 03
Mountains of Madness
The Curtain Rises Yellow Medium 06
Signs of Carcosa
The Dead Stars Yellow Hard 09
Masks of Nyarlathotep
The Earth Will Shake Green Hard 08
Cities in Ruin
The End is Nigh Yellow Hard 03
Mountains of Madness
The End Justifies the Means Yellow Medium 08
Cities in Ruin
The Forty Elephants Green Hard 09
Masks of Nyarlathotep
The Harder They Fall Yellow Medium 08
Cities in Ruin
The Horror in the Museum Blue Medium 03
Mountains of Madness
The Invisible Maze Green Medium 08
Cities in Ruin
The King in Yellow Blue Medium 06
Signs of Carcosa
The Messenger Green Hard 05
Under the Pyramids
The Ones Left Behind Green Medium 05
Under the Pyramids
The Ravages of Time Yellow Hard 05
Under the Pyramids
The Rival Yellow Medium 09
Masks of Nyarlathotep
The Sky is Bleeding Green Hard 08
Cities in Ruin
The Storm Yellow Hard
01Core
The Time Has Come Green Hard 03
Mountains of Madness
The Ulama of Ibn Tulun Green Easy 05
Under the Pyramids
The White Ship Blue Hard 02
Forsaken Lore
The Wind-Walker Blue Medium
01Core
The World Fights Back Yellow Easy
01Core
The World Shakes Yellow Normal
01Core
The Yellow Sign Yellow Hard 06
Signs of Carcosa
Tide of Despair Yellow Medium
01Core
Tied to a Dark Purpose Green Hard
01Core
Time Catches Up Green Medium 06
Signs of Carcosa
Time is Running Out Blue Medium 03
Mountains of Madness
Together We Stand Yellow Medium 07
The Dreamlands
Torn Asunder Green Hard
01Core
Transported to the Hyades Blue Medium 06
Signs of Carcosa
Treacherous Magic Yellow Normal
01Core
Treader of the Dust Blue Hard 05
Under the Pyramids
Trust No One Green Medium 07
The Dreamlands
Twin Spawn of Cthulhu Blue Hard 03
Mountains of Madness
Unexpected Betrayal Green Medium
01Core
Unhealthy Fascination Green Easy 06
Signs of Carcosa
Unimaginable Horror Yellow Hard 05
Under the Pyramids
Unknown Dangers Green Medium 05
Under the Pyramids
Vile Wounds Green Medium 03
Mountains of Madness
Visions of Past Lives Yellow Easy 05
Under the Pyramids
Voice of Mammon Yellow Hard 09
Masks of Nyarlathotep
Voodoo Curse Blue Easy 05
Under the Pyramids
Waking Nightmare Yellow Medium 07
The Dreamlands
Wanderlust Yellow Hard 02
Forsaken Lore
We're All Going To Die! Yellow Hard 04
Strange Remnants
Web Between Worlds Blue Hard
01Core
Weight of Avarice Yellow Medium 05
Under the Pyramids
What Lies Beneath Green Medium 08
Cities in Ruin
Wild Arcana Green Hard 04
Strange Remnants
With One Voice Green Hard 09
Masks of Nyarlathotep
Wonders of the World Yellow Easy 04
Strange Remnants
Worked to the Brink Yellow Medium 07
The Dreamlands
You Are Not Prepared Green Medium 08
Cities in Ruin

References[]

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