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Back to the ten worlds

3Endless Dungeon

Rule: Locks. Stage: Learning.

There is no surface and no sky, only dungeon. Sealed doors give way to Dungeon Keys, made at the Jailer's Table once you have reproduced the lock pattern. Every five minutes the halls rearrange themselves: 8 x 8 sections 16 to 40 blocks from you swap places or turn, and dust falls on them ten seconds before. Rooms, locks, chests and anything you built never move. Light is scarce, so bring your own.

  • 5 minbetween two rearrangements of the halls
  • 10 sof warning, dust on the moving halls
  • 16-40blocks from you: where the halls move

Jailer's Key

Set it against an iron door and give it a redstone signal (a lever, a button): the key turns and World 3 opens.

  • Ash Ingot ×2
  • Blazing Rock ×4
  • Ash Ingot ×2
  • Blazing Rock ×4
  • Titan Core
  • Blazing Rock ×4
  • Ash Ingot ×2
  • Blazing Rock ×4
  • Ash Ingot ×2
Matrix WorkbenchJailer's Key

Boss

Grand Jailer 911 health

It drops the Jailer Core.

Creatures

Who lives here

Pick a creature to watch it move and use its own attacks. The boss guards the core that opens the next world.

Jailer

Drag to turn it, scroll or pinch to zoom.

Jailer

Calls allies and closes doors.

Health
51
Damage
7.2

Attacks

Baton Strike
A blow at 3 blocks, 100% damage, then Slowness III 2 s.
Thrown Shackle
Fires a bolt in a straight line up to 16 blocks, 50% damage. Breaking line of sight dodges it, then Slowness IV 3 s.
Lockdown
Lets out a cry that reaches 10 blocks: Slowness II 4 s, Mining Fatigue II 4 s.

Open its technical sheet

How to meet it: Grand Jailer

Altar bossThe arena altar
  1. 1Craft a Sealed Shackle at the Jailer's Table.
  2. 2Walk 160 blocks south of the Threshold to the arena.
  3. 3Hold the offering and use the altar on its dais: a three-second ritual summons the boss.
  4. 4Every fight, the first and the next ones, costs one offering.

Sealed Shackle (Offering, Jailer's Table)

  • 6Sealed Fragment
  • 1Dungeon Key
  • 2Iron Chain

Structures and their loot

Eleven structures generate across every world, each with its own purpose. Here is where to look, what waits inside, and what the chests can hold.

  • Combat

    Arena

    Medium, common

    A sunken arena with tiered seats, gates, a champion's box and beast pens.

    A guarded loot room: spawners of the world's creatures around a rare chest (a vault chest in large ones), plus common chests.

  • Combat

    Jailers' Court

    Medium, common

    A sunken arena with tiered seats, gates, a champion's box and beast pens.

    A guarded loot room: spawners of the world's creatures around a rare chest (a vault chest in large ones), plus common chests.

  • Combat

    Moving Hall

    Medium, common

    A generated labyrinth with a central chamber, barred windows and, in the large ones, pit traps.

    A guarded loot room: spawners of the world's creatures around a rare chest (a vault chest in large ones), plus common chests.

  • Exploration

    Trap Labyrinth

    Large, rare

    A generated labyrinth with a central chamber, barred windows and, in the large ones, pit traps.

    Two to four chests hidden around: under tables, behind bookshelves, in cellars, in dead ends. The first is rare in medium and large ones.

  • Exploration

    Treasury

    Medium, rare

    A kiosk over a spiral stair down to an antechamber; a mural wall hides the way to the pedestal room.

    Two to four chests hidden around: under tables, behind bookshelves, in cellars, in dead ends. The first is rare in medium and large ones.

  • Exploration

    Crypt

    Medium, common

    A graveyard and mausoleum over a crypt of burial niches, sarcophagi and an ossuary.

    Two to four chests hidden around: under tables, behind bookshelves, in cellars, in dead ends. The first is rare in medium and large ones.

  • Story

    Sealed Library

    Medium

    A two-level library with book walls, a mezzanine and reading tables.

    A reading nook with a lectern and candles around a rare chest holding a page of the Journal.

  • Story

    Hall of Keys

    Medium

    A shrine on a stepped platform, with a pavilion, an altar, a gate and stone lanterns.

    A reading nook with a lectern and candles around a rare chest holding a page of the Journal.

  • People

    Prison

    Large, rare

    A two-storey prison with galleries, barred cells, the warden's office and a watchtower.

    The people of the world live here and trade with you, beside a common chest.

  • Secret

    Artisan's Cell

    Small

    A kiosk over a spiral stair down to an antechamber; a mural wall hides the way to the pedestal room.

    A puzzle or hidden passage leads to a vault chest with the world's hidden doll and a Journal page.

  • Combat

    Gaolers' Gatehouse

    Medium, rare

    A walled courtyard with corner towers, a gatehouse with its portcullis and a keep at the back.

    A guarded loot room: spawners of the world's creatures around a rare chest (a vault chest in large ones), plus common chests.

What the chests can hold

Common chest

3 to 5 stacks

  • Portable Trap
  • Cell Ration
  • Bread
  • Iron Nugget
  • Torch
  • Arrow
  • Iron Ingot

Rare chest

often an enchanted book

  • Dungeon Key
  • Sealed Fragment
  • Gold Ingot
  • Emerald
  • Enchanted Book
  • Bottle o' Enchanting
  • Golden Carrot

Vault chest

rare items too, and a 30% chance of one piece of the world's gear

  • Diamond
  • Golden Apple
  • Name Tag
  • Jailer's Blade
  • Key Chain Whip

Everything in this world

Every item and block, how to make or find it, and what the world asks of you.

Items

  • Dungeon Key

    Rare

    Opens a sealed door once.

    • Sealed Fragment ×3
    • Gold Nugget ×4
    Jailer's TableDungeon Key

    Found on Jailer, Living Lock

  • Sealed Fragment

    Rare

    Traps and gear.

    Found on Sentinel, Dungeon Rat, Executioner, Sealed Ore

  • Labyrinth Map

    Common

    Reveals nearby structures.

    Effect
    Cooldown 2 s
    • Paper ×4
    • Sealed Fragment
    Jailer's TableLabyrinth Map

  • Lockpick Kit ×2

    Common

    Opens an ordinary lock.

    • Iron Nugget ×4
    • Sealed Fragment
    Jailer's TableLockpick Kit ×2

  • Portable Trap ×2

    Common

    Immobilizes a mob.

    • Iron Ingot ×2
    • Sealed Fragment
    Jailer's TablePortable Trap ×2

  • Jailer's Blade

    Rare
    Attack damage
    11
    Attack speed
    1.6
    Durability
    840
    • Sealed Fragment ×8
    • Stick
    Jailer's TableJailer's Blade

  • Refuge Doll

    Legendary

    A pocket base for your group. Use it to enter, use it again to leave.

    • Sealed Fragment
    • Painted Wood ×4
    • Sealed Fragment
    • Gold Ingot
    • Gold Ingot
    • Sealed Fragment
    • Painted Wood ×4
    • Sealed Fragment
    Matrix WorkbenchRefuge Doll

  • Jailer Core

    Legendary

    Opens the way into World 4.

    Found on Grand Jailer

  • Jailer's Key

    Epic

    Set it against an iron door and give it a redstone signal (a lever, a button): the key turns and World 3 opens.

    • Ash Ingot ×2
    • Blazing Rock ×4
    • Ash Ingot ×2
    • Blazing Rock ×4
    • Titan Core
    • Blazing Rock ×4
    • Ash Ingot ×2
    • Blazing Rock ×4
    • Ash Ingot ×2
    Matrix WorkbenchJailer's Key

  • Hidden Doll 3

    Two notches are carved under its base. Nest the ten dolls in order...

  • Sealed Shackle

    Epic

    Held at the arena altar, it wakes the Grand Jailer.

    • Sealed Fragment ×6
    • Dungeon Key
    • Iron Chain ×2
    Jailer's TableSealed Shackle

  • Cell Ration ×2

    Common

    Long-lasting saturation.

    Food
    6 (3 shanks)
    Saturation
    9.6
    Effect
    Saturation for 2 s
    • Bread
    • Steak
    Jailer's TableCell Ration ×2

  • Grand Jailer Trophy

    Epic

    A painted doll of the boss, won in its trial.

  • Key Chain Whip

    Rare

    Long reach. Every lash drags the foe toward you and slows it.

    Attack damage
    9
    Attack speed
    1.8
    Reach
    +2.5
    Durability
    840

  • Jailer Helmet

    Rare
    Armor
    3
    Toughness
    0.75
    Knockback resistance
    6 %
    Durability
    418
    • Sealed Fragment ×5
    Jailer's TableJailer Helmet

  • Jailer Chestplate

    Rare
    Armor
    7
    Toughness
    0.75
    Knockback resistance
    6 %
    Max health
    +1
    Durability
    608
    • Sealed Fragment ×8
    Jailer's TableJailer Chestplate

  • Jailer Leggings

    Rare
    Armor
    5
    Toughness
    0.75
    Knockback resistance
    6 %
    Max health
    +1
    Durability
    570
    • Sealed Fragment ×7
    Jailer's TableJailer Leggings

  • Jailer Boots

    Rare
    Armor
    3
    Toughness
    0.75
    Knockback resistance
    6 %
    Durability
    494
    • Sealed Fragment ×4
    Jailer's TableJailer Boots

Blocks

  • World Soil 3

    The soil of World 3.

  • Sealed Door

  • Jailer's Table

    Reproduce the lock pattern.

    • Ash Ingot
    • Ash Ingot
    • Smithing Table
    • Ash Ingot
    • Ash Ingot
    Matrix WorkbenchJailer's Table

  • Dungeon Brick

  • Sealed Brick

  • Cold Lamp

  • Sealed Ore

    Mined, it gives Sealed Fragment

Quests

  • Turn the KeyOpen 3 doors with keys.
  • Read the PlanComplete a labyrinth map: reach the place it points to.
  • The LocksmithDefeat 5 living locks.
  • Last MessageCarry a letter (a Journal Page) from cell to cell: into 3 different places of the dungeon.
  • The EscapeFree the prisoners (+10) or claim the bounty (-10).
  • KeylessDefeat an Executioner.

Achievements

  • Under LockOpen World 3.Progress
  • The Right KeyOpen a first sealed door.Progress
  • Empty CellDefeat the Grand Jailer.Progress
  • Full PlanCraft a labyrinth map.Exploration
  • Guided TourVisit the 10 structure types.Exploration
  • Prison RegisterFind the 5 Journal pages.Exploration
  • Trap ReturnedTrap a mob with a portable trap.Combat
  • Open CellDefeat an Executioner.Combat
  • It Won't OpenTry a key on a living lock.Hidden, hidden until you earn it
  • Captive DollFind the hidden doll of the world.Hidden, hidden until you earn it

Jailer's Table

Jailer's Table

Reproduce the lock pattern.

Jailer's Table

Built at the Matrix Workbench from

  • Ash Ingot
  • Ash Ingot
  • Smithing Table
  • Ash Ingot
  • Ash Ingot
Matrix WorkbenchJailer's Table
  • Paper ×4
  • Sealed Fragment
Jailer's TableLabyrinth Map
  • Iron Nugget ×4
  • Sealed Fragment
Jailer's TableLockpick Kit ×2
  • Iron Ingot ×2
  • Sealed Fragment
Jailer's TablePortable Trap ×2
  • Sealed Fragment ×3
  • Gold Nugget ×4
Jailer's TableDungeon Key
  • Bread
  • Steak
Jailer's TableCell Ration ×2
  • Sealed Fragment ×6
  • Dungeon Key
  • Iron Chain ×2
Jailer's TableSealed Shackle
  • Sealed Fragment ×8
  • Stick
Jailer's TableJailer's Blade
  • Sealed Fragment ×5
Jailer's TableJailer Helmet
  • Sealed Fragment ×8
Jailer's TableJailer Chestplate
  • Sealed Fragment ×7
Jailer's TableJailer Leggings
  • Sealed Fragment ×4
Jailer's TableJailer Boots

What you'll carry

  • Dungeon KeyOpens a sealed door once.
  • Sealed FragmentTraps and gear.
  • Labyrinth MapReveals nearby structures.
  • Lockpick KitOpens an ordinary lock.
  • Portable TrapImmobilizes a mob.
  • Jailer's Blade
  • Refuge DollA pocket base for your group. Use it to enter, use it again to leave.
  • Sealed ShackleHeld at the arena altar, it wakes the Grand Jailer.
  • Grand Jailer TrophyA painted doll of the boss, won in its trial.
  • Key Chain WhipLong reach. Every lash drags the foe toward you and slows it.
  • Cell RationLong-lasting saturation.

Jailer HelmetJailer ChestplateJailer LeggingsJailer Boots

Armour set 18 armour, 3 toughness, a 11-damage weapon at this tier.

Eleven structures

Combat

Arena, Jailers' Court, Moving Hall, Gaolers' Gatehouse

Exploration and loot

Trap Labyrinth, Treasury, Crypt

Story

Sealed Library, Hall of Keys

Utility

Prison

Secret

Artisan's Cell