Madness × Loot × Free Browser RPG

Thou art a cultist.

Cultists with Gods of Insane

Explore ancient ruins, gather grotesque relics, and reshape your deck of 7 Authorities.
Offer Kunto, pray, and be reborn, reaching ever towards power beyond humankind.

No installation requiredDesktop and mobileTry before registering

OFFICIAL PROMOTION VIDEO00:31 / Original Japanese trailer with audio. Contains blood and grotesque imagery.
Free to StartCore gameplay
Auto BattleRuin exploration
Up to 7 SlotsAuthority deck
Up to 13 HoursOffline training
01 / THE CYCLE

Descend. Gather. Build.
Then be reborn.

Battles unfold automatically.
You decide what to bring, which Authorities to prepare, and when to pray.

A blood-soaked passage deep within the ruins
Explore the ruins without an entry limitEven in defeat, you keep the items you have obtained and awaken once more in the city.
01

Descend into the Ruins

Choose a floor and enter automatic battles against monsters and echoes of cultists.
Stronger foes and new treasures await below.

02

Bring Home Kunto and Relics

Gather Kunto for growth, consumable Mystic Fragments, and Divine Relics to equip.

03

Reshape Your Build

Adjust your relic stats and Authority deck.
Attack, defence, healing, ailments
— forge your own path to victory.

04

Pray and Be Reborn

Offer Kunto to raise your Rank, then undergo Rebirth upon reaching your limit.
Gain Divine Realm and new Authorities.

A maid and a decaying city beneath a blood moon

THE DECADENT CITY

Beneath a moon of blood,
a city in decay.

Greeted by a cold-eyed maid, thou shalt pass between the ruins and the cathedral.
Blasphemous, and at times absurd, this city shall become thy refuge.

02 / RELICS & AUTHORITIES

Devour, don,
or feed another.

Finding your spoils is only the beginning.
Consume fragments yourself, wear relics, and turn surplus relics into flesh and blood for your familiars.

Dark Red Holy WaterDark Red Holy Water
Blue-Blooded FleshBlue-Blooded Flesh
Mad Dog’s MarrowMad Dog’s Marrow
Crown of Blind LiliesCrown of Blind Lilies
Lamb’s Brain Scrambled EggsLamb’s Brain Scrambled Eggs
Goat Testicle SashimiGoat Testicle Sashimi

Whose flesh shall it become?
Every use shapes your build.

Strengthen your next battle, keep an item as equipment, or give it to a familiar to grow.
Each grotesque treasure has a different destiny.

Devour — Mystic Fragments

Use them for temporary boosts on your next exploration or to adjust your growth tendencies. Once consumed, they are gone.
To survive the present, make the monstrous part of thine own flesh and blood.

Don — Divine Relics

Equip relics to reshape your primary stats.
The strange treasures you choose for your limited equipment slots change how you fight on that expedition.

Feed — Familiars

Give your familiars the stats of relics to strengthen them.
As they feed, familiars inherit the tendencies of the stats they receive and evolve into new forms.

Even the same familiar can evolve differently, depending on how you raise it.
Unwithering Bloom — Balanced Evolution Example
Unwithering Bloom
Original Form Unwithering Bloom
Innocent Unwithering Bloom
First Evolution Innocent
Unwithering Bloom
Saint Innocent Unwithering Bloom
Second Evolution Saint
Innocent Unwithering Bloom
The final form of Unwithering Bloom, its outline concealed
Final Form ???
03 / GODS OF INSANE

In the depths of the abyss,
the gods await.

A different deity appears on each day of the week in the daily raid.
All players’ damage contributes to a shared total. Claim rewards the following day according to your contribution.

Charchaktuk, Drowsing Golden Crow of the Burning Heavens
SUNCharchaktuk, of the Burning Heavens
Vegruguios, Moon-Enraptured Devourer of Light
MOONVegruguios, Devourer of Light
Shairsurya, Pyre-Clad Lord of Smoldering Corpses
FIREPyre-Clad Shairsurya
Nnu-Mouruph, Flooding Great Mother of Dreaming Waters
WATERNnu-Mouruph, Flooding Great Mother
Baromeitrik, Forest-Eating Beast of the Black Woods
WOODBaromeitrik, the Forest-Eater
Myuri-Nuianne, Frenzied Splendid Queen of Golden Rain
GOLDMyuri-Nuianne, of Golden Rain
Maid, Retired Earth Mother and Lady of Leisure
EARTHMaid, Lady of Leisure
04 / BEYOND THE RUINS

Beyond the ruins,
madness endures.

Explore the core ruins and develop your character on your own.
Beyond them await stories, cooperative battles, asynchronous competition, and encounters with others.

An uncanny library filled with swirling books and scraps of paper
STORY

Stories Shaped by Your Choices

Read gamebook-style stories, make choices, and sometimes fight.
Discover events and rewards unlike those in the ordinary ruins.

Cultists offering their prayers
SECT

Sects of Cultists

Join a sect, raise divine infants, and enter Sacred Contests.
Keep solo development at the heart of your journey, connecting with others when you choose.

Baromeitrik, Forest-Eating Beast of the Black Woods
RAID & DUEL

Daily Raids and Divine Duels

Contribute damage to shared PvE raids, or challenge the shadows of other cultists in simulated PvP.
Put your build to the test on another battlefield.

A maid before a red moon and a horde of grotesque creatures

ENDLESS CULTIVATION

The greater thy strength,
the fainter thy human form.

Beyond Rank and Rebirth lie Doctrines, the Rite of Cannibalism,
mutations through Chaos Sacrifice, and further paths of long-term growth.

  • Raise Divine Realm through prayer and Rebirth
  • Follow branching Doctrine trees and collect Authorities
  • Develop further through bodily and mental mutations
  • Earn up to 13 hours of Kunto while away
05 / FAQ

For the little reason
that yet remains.

Can I play for free?

You can start for free.
Choose “Trial play” on the title page to try the core game before creating an account.

Do I need to install anything?

No.
Launch the game directly in a supported desktop or mobile browser.
You can also add it to your home screen as a PWA.

How does trial play differ from a registered account?

Trial play starts immediately without registration.
If you wish to continue, create an account through the in-game cloud feature. Only your Divine Realm, Rank, and currently held Kunto will transfer.
Equipment, inventory, Authorities, familiars, Doctrines, exploration progress, and other progress will not transfer. You will also leave the trial sect.
You can review the warning and the values to be transferred in the game before proceeding.

Will I lose equipment if I am defeated?

You keep the items you have already obtained.
You awaken in the city with part of your Kunto. Your progress on that floor and temporary exploration boosts are reset.

Can I play alone?

Yes. You can explore ruins and develop your character on your own.
Online features such as sects, daily raids, and Divine Duels become available as you progress.

THE CITY AWAITS

Come, then, to the city in decay.

Experience ruin exploration and automatic battles in trial play, with no account required.

Try Free — No Account Needed