Unknown Echoes

Unknown Echoes is an adventure mod built around exploration, puzzles, boss fights, and ability progression. Explore ten biomes in the Echo Realm, then descend through six biomes across the three strata of Deep Echoes. Five Echo abilities, six artifacts, and multiple equipment paths unlock through personal progress.

You can follow the advancement tree step by step as you play. Press K to open the Echo Overview.

Tip: Netherite armor is the baseline difficulty setting for entering this mod's dimensions. Use /unknownechoes command for testing.

Shaders are recommended: mobs and blocks carry a large set of emissive layers.

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Quick Start

Entering the Echo Realm

1. Craft an Echo Realm Key: Use 4 Echo Shards + 1 Echo Core.
2. Find a Resonance Beacon: Resonance Beacon Ruins generate naturally in the Overworld.
3. Awaken the Beacon: Right-click the beacon while holding the key.
4. Enter the Echo Realm: Right-click the activated beacon.
5. Return to the Overworld: Right-click the beacon inside the realm to return to your Overworld spawn or respawn point.

Entering Deep Echoes

1. Complete the Echo Realm main story: Obtain Wind Echo, Tide Echo, and True Sight Echo; defeat the three main bosses; then complete the three archive trials in the Echo Grand Archive. Its terminal records a clue to the nearest altar in your journal.
2. Find an Abyss Beacon Altar: These altars generate naturally in the Echo Cliffs.
3. Activate the deep passage: With an empty hand, right-click the Abyss Beacon to calibrate Wind, Tide, and True Sight in order. Right-click again after each animation ends.
4. Enter Deep Echoes: Right-click the beacon after the final activation animation.
5. Return to the Echo Realm: Right-click the Abyss Beacon in the Fracture Hall.

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Core Gameplay

1. Explore the Echo Forest, find the Memory Pillar Courtyard, defeat the Forgotten Colossus, and unlock Wind Echo.
2. Explore Mirror Lake and the Tide Lighthouse Reef, enter the Sunken Temple, defeat the Abyss Watcher, and unlock Tide Echo.
3. Explore the Mirror Dust Cloister, enter the Mirror Temple, defeat the Mirror Guardian, and unlock True Sight Echo.
4. Explore 16 biomes across both realms, gathering materials, Ancient Pages, and ruin records while challenging 10 regional guardians.
5. Unlock and upgrade 6 core artifacts through personal exploration progress, strengthening five ability paths.
6. Find the Echo Grand Archive in the Echo Cliffs to complete the main story and reveal a clue leading deeper.

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Bosses and Regional Guardians

Six Main Bosses

Main bosses resist most damage until their guard breaks. Use each arena's mechanisms to create an opening, then attack.

Main Boss	Arena	Unlocks Ability
Forgotten Colossus	Memory Pillar Courtyard (Echo Forest)	Wind Echo
Abyss Watcher	Sunken Temple (Mirror Lake / Tide Lighthouse Reef)	Tide Echo
Mirror Guardian	Mirror Temple (Mirror Dust Cloister)	True Sight Echo
Void Prophet	Calibration Hall (Inverted Chasm)	Gravity Echo
Rift Warden	Void Vein Chamber (Silent Abyss)	Void Echo
World Echo	World Resonance Hall (Silent Abyss)	None

Eight Echo Realm Regional Guardians

Guardian	Biome / Location
Storm Weaver	Floating Isles · Sky Observatory
Tide Lantern Keeper	Tide Lighthouse Reef
Mirror Dust Butler	Mirror Dust Cloister
Silent Priest	Silent Swamp · Silent Altar
Crystal Songkeeper	Crystal Song Grove · Crystal Song Hall
Broken Bell Keeper	Broken Bell Wastes · Broken Bell Tower
Dream Bloom Keeper	Dreaming Meadow · Underground Greenhouse
Lost Recorder Chief	Echo Cliffs · Archive Remnant Hall

Two Deep Echoes Regional Guardians

Guardian	Biome / Location
Ash Scribe	Folded Corridors · Folded Celestial Archive
Inverted Gatekeeper	Inverted Chasm · Inverted Pendulum Palace

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Core Artifacts

They are unlocked and upgraded based on your personal exploration progress.

Artifact	Role
Storm Compass	Short-duration flight · Aerial maneuvering
Tide Lantern	Survival
Echo Lens	Damage output · Detection
Hourglass	Time Freeze · Area Control
Dimension Anchor	Cross-Dimension Return
Rift Anchor	Deep Echoes Return

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Biomes

Echo Realm

Biome	Highlights
Echo Forest	Basic resources, Wind path
Floating Isles	High-altitude wind erosion, wind-based materials, Storm Compass progress
Mirror Lake	Surface exploration, Tide path
Tide Lighthouse Reef	Deep-water ruins, Tide Lantern progression
Mirror Dust Cloister	Illusions, false/true layers, True Sight progression
Silent Swamp	Suppressive hazards, silence, defensive equipment
Crystal Song Grove	Musical crystals, crystal song materials
Dreaming Meadow	Supplies, trade, recovery
Broken Bell Wastes	Timed mechanisms, heavy enemies, mechanical materials
Echo Cliffs	Endgame, Echo Grand Archive, Deep Echoes access

Deep Echoes

Deep Echoes has three connected strata, each split into two biomes. Use the Abyss Beacon in the Fracture Hall to return to the Echo Realm.

Biome	Highlights
Folded Corridors	Deep entrance, Foldpage Bugs, folded archives and waystations
Shattered Archive	Misfiled catalogs, sequence runes, hidden True Sight records
Inverted Chasm	Gravity fields, inverted bridges, gravity shard spires
Weightless Grotto	Suspended crystals, inverted archive towers, survey puzzles
Silent Abyss	Void rifts, stabilizers, hushed refuges
Voidscar Hollows	Fractured anchors, sealed vaults, safe paths through void scars