World 3

World 3: Endless Dungeon

Endless Dungeon is world 3 of 10, in the learning tier. Its rule is Locks. You open it with the Jailer's Key, made from the core of the World 2 boss (Ash Titan).

At a glance

Tier	Learning
Rule	Locks
Station	Jailer's Table
Boss	Grand Jailer (911 health, 17.3 damage)
Core	Jailer Core
People	Prisoner
Way in	Jailer's Key: 1 Titan Core, 8 Ash Ingot, 16 Blazing Rock
Variants	Drowsy Dungeon (calm), Grinding Dungeon (wild)
Atmosphere	Cold stone: a dark blue-grey fog, opening from 12 to 110 blocks and darker than the stone, so the halls read at a corridor's length; white-blue lamplight, cold dust settling, the odd glint of a chain
Biomes	Its own, with two lesser biomes at its edges: Mossy Cells (mossy stone bricks floor) and Crumbling Wing (cracked stone bricks floor)
Surge	Lockdown
Travelling merchant	Escaped Prisoner
New gear	Key Chain Whip

Opening the world

• Recipe of the Jailer's Key (Matrix Workbench, after the World 2 boss (Ash Titan) is defeated): 1 Titan Core, 8 Ash Ingot, 16 Blazing Rock.
• Rite: Set it against an iron door and give it a redstone signal (a lever, a button). See The way into each world.
• Arrival: a Threshold platform at the centre of your group's parcel. The boss arena is 160 blocks south (positive Z).

Terrain

A roofed world built on the Nether-style generator, entirely in Dungeon Brick. There is no sky; fog closes in at 72 blocks.

Block	Type	Drops
Dungeon Brick	Brick (pickaxe)	itself
Sealed Brick	Unbreakable	itself
Cold Lamp	Light level 13	itself
Sealed Ore	Ore (pickaxe, correct tool needed)	Sealed Fragment

The rule: Locks

World 3 has no gauge. Its rule is the locks.

• Every dungeon-type structure (maze, cell, crypt, vault, library and lab layouts) has a Sealed Door at its entrance. Sealed Doors and Sealed Brick cannot be broken.
• A Dungeon Key opens a door (and every sealed door block within 2 blocks horizontally and 3 vertically). The key is consumed.
• A Lockpick Kit has a 50% chance to open a door. It is consumed either way.
• And the halls move: see below.

The moving halls

Every 5 minutes the dungeon rearranges itself around every player.

• 10 seconds before, the message "The halls are about to move..." appears, the walls grind, and dust falls from the parts of the dungeon that are about to move. Watch the dust: it shows you exactly which halls will change.
• The dungeon is cut into hall sections of 8 x 8 blocks, 16 blocks tall (from 5 blocks under your feet to 10 above your head).
• When the shift comes, up to four pairs of sections swap places, each pair turned a quarter, a half or three quarters on the way, and up to two more sections turn on themselves. They are picked 16 to 40 blocks from you.
• Passages that led somewhere now end in a wall; walls that blocked you now open on a new hall. Creatures standing in a moving section travel with it.
• The message "The halls have moved around you." confirms the shift.

What never moves

The halls move, the rooms do not. A section stays where it is when it holds, or sits next to:

• a player (no section within 6 blocks of anyone moves, and the ring around you starts two sections away, so the ground under your feet and the hall you stand in are never touched);
• a block entity: chests, barrels, stations, the Jailer's Table, Soul Cradles, death chests;
• an unbreakable block: Sealed Bricks, Sealed Doors, altars, the Threshold;
• a fluid;
• a block you placed: your torches, walls, bridges and builds keep the halls around them still;
• any part of a structure: arenas, courts, cells, vaults, mazes and their locks stay whole, so a key always finds its door;
• a boss, the boss stage and the area around the Threshold.

If anything ever ends up overlapping you after a shift, you are moved to the nearest free spot.

Tips

• Build to keep a route: a single block you placed in a hall pins that hall in place.
• Light your way with your own torches: they also mark the halls as yours.
• A Labyrinth Map still finds the structures: they never move.

Numbers

5 min	between two rearrangements
10 s	of warning, with falling dust on the moving halls
8 x 8 x 16	blocks per hall section
16 to 40	blocks from you: where the halls move
4 + 2	swaps and turns per player per shift

Creatures

Creatures spawn naturally in the world (regular ones in groups of 1 to 3, swarms in groups of 2 to 4, elites alone and rarer) and from spawners in combat structures. See the Bestiary for all fifty.

Creature	Health	Damage	Traits	Behavior (as coded)	Drops
Jailer	51	7.2	-	Every 10 s rings a bell and sets every idle Matriochka creature within 24 blocks on you.	Dungeon Key (60%)
Sentinel	55	7.2	-	Every 2.5 s, with line of sight within 20 blocks, chains you for 60% of its damage and Slowness III (2 s).	Sealed Fragment (60%)
Living Lock	44	5.8	-	Invisible and motionless until you come within 3.5 blocks. Does not walk after revealing itself.	Dungeon Key (60%)
Dungeon Rat	18	4.3	-	Fast (speed 0.33) and spawns in packs of 2 to 4.	Sealed Fragment (60%)
Executioner	82	11.5	elite	Dashes at you every 4 s and, every 10 s when you are within 3 blocks, cages you in iron bars.	Sealed Fragment (100%, 1-2)

Items

Item	Kind	Rarity (souls)	Effect
Dungeon Key	key	rare (10)	Opens a sealed door once. In code: Use on a Sealed Door: opens it and every sealed door block within 2 blocks. Consumed.
Sealed Fragment	resource	rare (10)	Traps and gear.
Labyrinth Map	tool	common (1)	Reveals nearby structures. In code: Right-click: names the nearest unvisited structure of the current world, its distance and direction (2 s cooldown).
Lockpick Kit	tool	common (1)	Opens an ordinary lock. In code: Use on a Sealed Door: 50% chance to open it. Consumed either way.
Portable Trap	consumable	common (1)	Immobilizes a mob. In code: Use on a mob: Slowness XI and Weakness III for 8 s. Consumed.
Jailer's Blade	weapon	rare (10)	Sword-type weapon, about 11 attack damage. Gets a random class when crafted.
Jailer Helmet	armor	rare (10)	3 armor, 0.75 toughness
Jailer Chestplate	armor	rare (10)	7 armor, 0.75 toughness, +1 max health
Jailer Leggings	armor	rare (10)	5 armor, 0.75 toughness, +1 max health
Jailer Boots	armor	rare (10)	3 armor, 0.75 toughness
Cell Ration	food	common (1)	Long-lasting saturation. Food: 6 hunger, 0.8 saturation, always edible.
Key Chain Whip	weapon	rare (10)	9 damage, quick, 2.5 blocks more reach. Every lash slows the foe and drags it toward you (never a boss). Jailer's Table. See New gear.

The Jailer's Key and the Hidden Doll 3 are listed on the Items page.

Station: Jailer's Table

Reproduce the lock pattern. Crafted at the Matrix Workbench from 1 Smithing Table (vanilla), 4 Ash Ingot (World 2 boss defeated).

How it works: A three-pin lock pattern (pins 0 to 3) is rolled for the table. Press the pins in the right order; a wrong pin resets the input. The pattern changes after every craft.

Output	Ingredients	Unlocked
Labyrinth Map	4 Paper (vanilla), 1 Sealed Fragment	Always
Lockpick Kit x2	4 Iron Nugget (vanilla), 1 Sealed Fragment	Always
Portable Trap x2	2 Iron Ingot (vanilla), 1 Sealed Fragment	Always
Dungeon Key	3 Sealed Fragment, 4 Gold Nugget (vanilla)	Always
Cell Ration x2	1 Bread (vanilla), 1 Cooked Beef (vanilla)	Always
Jailer's Blade	8 Sealed Fragment, 1 Stick (vanilla)	Always
Jailer Helmet	5 Sealed Fragment	Always
Jailer Chestplate	8 Sealed Fragment	Always
Jailer Leggings	7 Sealed Fragment	Always
Jailer Boots	4 Sealed Fragment	Always
Sealed Shackle	6 Sealed Fragment, 1 Dungeon Key, 2 Iron Chain (vanilla)	Always
Key Chain Whip	5 Sealed Fragment, 1 Dungeon Key, 3 Iron Chain (vanilla)	Always

Every weapon, tool and armor piece crafted here gets a random class (see Equipment classes).

Boss: Grand Jailer

911 health, 17.3 damage, phases at 66% and 33% of its health. Summon it with the Arena Altar. It drops Jailer Core, and every player within 64 blocks gets 100 souls and credit for the kill.

Attack	What the code does
Light: Chain Pull	Frontal strike: 60% damage within 3.2 blocks.
Medium: Floor Cage	Chain pull: drags everything within 18 blocks toward it.
Signature: Moving Walls	Cages every player within 16 blocks in iron bars.
Final phase: The arena becomes a cell	Phase change only (speed up, faster cooldowns).

Full mechanics, timings and multiplayer scaling: Bosses. Its animations, attack by attack: Boss attacks.

Structures

Eleven structure types generate in this world (the eleventh since 0.4.0). Each is built procedurally from a layout and the world's palette.

Structure	Role	Size	Rarity	Layout	Frequency	Contents
Arena	combat	medium	common	arena	about one per 18 x 18 chunks	a mob spawner (a regular creature of the world) and a loot chest
Jailers' Court	combat	medium	common	arena	about one per 18 x 18 chunks	a mob spawner (a regular creature of the world) and a loot chest
Moving Hall	combat	medium	common	maze	about one per 18 x 18 chunks	a mob spawner (a regular creature of the world) and a loot chest
Trap Labyrinth	exploration	large	rare	maze	about one per 42 x 42 chunks	two loot chests
Treasury	exploration	medium	rare	vault	about one per 34 x 34 chunks	two loot chests
Crypt	exploration	medium	common	crypt	about one per 18 x 18 chunks	two loot chests
Sealed Library	story	medium	unique	library	about one per 64 x 64 chunks	a chest with a Journal Page, and a painted frieze
Hall of Keys	story	medium	unique	shrine	about one per 64 x 64 chunks	a chest with a Journal Page, and a painted frieze
Prison	utility	large	rare	cell	about one per 42 x 42 chunks	a member of the world's people
Artisan's Cell	secret	small	unique	vault	about one per 64 x 64 chunks	a chest with a Journal Page and the world's Hidden Doll
Gaolers' Gatehouse	combat	medium	rare	bastion	about one per 34 x 34 chunks	mob spawners and a guarded loot chest

World events

While you are here, now and then (see World events):

• Invasion: three waves of the world's creatures, the last led by a glowing warlord, one of its elites; beat it within four minutes for a reward chest and 30 souls each.
• Surge: Lockdown. For two minutes the world's rule bites twice as hard. On top of it: Mining Fatigue, and every five seconds the locks grind and slow you. Weather it for 15 souls.
• Travelling merchant: Escaped Prisoner, for five minutes: Key Chain Whip for 10 Sealed Fragment, Shell Shard for 3 Dungeon Key, Sealed Shackle for 6 Sealed Fragment (each trade twice).

People: Prisoner

Locksmiths and convicts who never learned what they are guarding against. They spawn naturally in small numbers and one stands in every utility structure of the world. Prices drop by 10% at karma +25 and rise by 10% at karma -25; at karma -50 or lower they refuse to trade one time in three (see Souls and karma).

They want	They give
Sealed Fragment x3	Lockpick Kit x2
Sealed Fragment x6	Dungeon Key x1
Bread x4	Labyrinth Map x1

Quests

Available once World 3 is open (that is, once the World 2 boss (Ash Titan) is defeated). See Quests.

Quest	Type	Description	Objective as coded	Reward
Turn the Key	Guide	Open 3 doors with keys.	Use Dungeon Key 3 time(s) on Sealed Doors	5 Lockpick Kit
Read the Plan	Guide	Complete a labyrinth map.	Craft Labyrinth Map	20 souls
The Locksmith	People	Defeat 5 living locks.	Kill 5 Living Lock	20 souls
Last Message	People	Carry a letter from cell to cell.	Carry 1 Journal Page (counted from your inventory, not taken)	1 Journal Page
The Escape	Karma	Free the prisoners (+10) or claim the bounty (-10).	Choose Help (+10 karma) or Betray (-10 karma) in the Journal	40 souls
Keyless	Challenge	Defeat an Executioner.	Kill 1 Executioner	Title: Wall Walker

Achievements

Achievement	Type	Description	How it unlocks in the code	Reward
Under Lock	progress	Open World 3.	Enter World 3.	5 souls
The Right Key	progress	Open a first sealed door.	Open a Sealed Door with a key or a lockpick.	5 souls
Empty Cell	progress	Defeat the Grand Jailer.	Land the killing blow on Grand Jailer.	5 souls
Full Plan	explore	Craft a labyrinth map.	Have Labyrinth Map in your inventory.	10 souls
Guided Tour	explore	Visit the 10 structure types.	Step inside all 10 structure types of this world.	10 souls
Prison Register	explore	Find the 5 Journal pages.	Collect the 5 Journal Pages of this world.	10 souls
Trap Returned	combat	Trap a mob with a portable trap.	Use a Portable Trap on a mob.	-
Open Cell	combat	Defeat an Executioner.	Land the killing blow on Executioner.	-
It Won't Open	hidden	Try a key on a living lock.	Walk up to a hidden Living Lock until it reveals itself.	-
Captive Doll	hidden	Find the hidden doll of the world.	Have Hidden Doll 3 in your inventory.	-

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