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Cthulhu's Reach: Devil Reef Achievements · Ludixa

Achievements

Every Cthulhu's Reach: Devil Reef achievement, ordered by how few players in the world have unlocked it.

to keep track of what you have here — unlocked entries stay ticked off, and you can filter down to what is left.

Data from Steam — Steam Web API Terms of Use. Last updated 3 Oct 2026.

← Cthulhu's Reach: Devil Reef

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24 of 24 entries

For the 10th time, Stay down!

For the 10th time, Stay down!Defeat Mother Hydra 10 times across all runs.0%Ultra rare

Kiss of Madness

Kiss of MadnessReach 0 sanity and survive the level.0%Ultra rare

Pandemonium

PandemoniumSurvive a level with the Pandemonium mutation active.0%Ultra rare

Hoarder of Dagonite

Hoarder of DagoniteSpend 250 Dagonite over your lifetime.0%Ultra rare

Amidst Wonder and Glory

Amidst Wonder and Glory100% knowledge entries unlocked.0%Ultra rare

What Obed Brought Back

What Obed Brought Back100 knowledge entries unlocked.0.1%Ultra rare

Hydra's Reckoning

Hydra's ReckoningDefeat Mother Hydra without taking a single hit.0.1%Ultra rare

Broken Mind, Unbroken Will

Broken Mind, Unbroken WillSurvive a level after crossing into the Broken threshold.0.1%Ultra rare

The Dice Spoke, You Listened

The Dice Spoke, You ListenedIn a single run, trigger and survive all four curse thresholds.0.1%Ultra rare

Stable Mind

Stable MindComplete an entire Act without triggering a single curse die.0.1%Ultra rare

Tide of Silver

Tide of SilverUnlock every weapon.0.2%Ultra rare

Zadok's Testimony

Zadok's Testimony50 knowledge entries unlocked.0.2%Ultra rare

Doctrines of the Order

Doctrines of the Order75 knowledge entries unlocked.0.2%Ultra rare

A Riptide Force

A Riptide ForceDefeat any Act boss within 3 minutes of entering its arena.0.3%Ultra rare

Word Beyond Reckoning

Word Beyond ReckoningUncover an Eldritch-rarity incantation for the first time.0.4%Ultra rare

The Tainted Shore

The Tainted Shore25 knowledge entries unlocked.0.5%Ultra rare

Dear Diary

Dear DiaryFill in your first codex entry.1.1%Very rare

Feeling Unsettled

Feeling UnsettledCross into the Unsettled sanity threshold for the first time.1.1%Very rare

First Whispers

First WhispersUncover your first Incantation.1.3%Very rare

Back to the Beach

Back to the BeachStart a new run immediately after dying.1.4%Very rare

Baptized in Salt

Baptized in SaltDie for the first time.1.4%Very rare

Turned The Tide?

Turned The Tide?I have reached the bottom...1.8%Very rare

Hollow No More

Hollow No MoreBetter bring this fire with me...3.8%Very rare

Deeper Into The Reef

Deeper Into The ReefA respite, thin as air...8.2%Rare