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OVERWORLD · UNDERGROUND

Trial Chambers

Sprawling copper-and-tuff complexes built around combat rooms, traps, and locked vaults. Players come for breeze rods, heavy cores, exclusive decorative rewards, and the materials to craft a mace.

Tuff brick room with copper trim and a green copper floor, dark cave space in the foreground
Trial chambers at 112, -34, 240Seed 17108149081942125 · Java 26.3

From the Minecraft Wiki, summarised

How it generates

Generates underground, with its starting piece between Y=-40 and Y=-20. Other rooms can reach above or below that range.

Biomes

  • Mushroom Fields
  • Deep Frozen Ocean
  • Frozen Ocean
  • Deep Cold Ocean
  • Cold Ocean
  • Deep Ocean
  • Ocean
  • Deep Lukewarm Ocean
  • Lukewarm Ocean
  • Warm Ocean
  • Stony Shore
  • Swamp
  • Mangrove Swamp
  • Snowy Slopes
  • Snowy Plains
  • Snowy Beach
  • Windswept Gravelly Hills
  • Grove
  • Windswept Hills
  • Snowy Taiga
  • Windswept Forest
  • Taiga
  • Plains
  • Meadow
  • Beach
  • Forest
  • Old Growth Spruce Taiga
  • Flower Forest
  • Birch Forest
  • Dark Forest
  • Pale Garden
  • Savanna Plateau
  • Savanna
  • Jungle
  • Badlands
  • Desert
  • Wooded Badlands
  • Jagged Peaks
  • Stony Peaks
  • Frozen River
  • River
  • Ice Spikes
  • Dappled Forest
  • Old Growth Pine Taiga
  • Sunflower Plains
  • Old Growth Birch Forest
  • Sparse Jungle
  • Bamboo Jungle
  • Eroded Badlands
  • Windswept Savanna
  • Cherry Grove
  • Frozen Peaks
  • Dripstone Caves
  • Lush Caves
  • Sulfur Caves

Placement values are for Java 26.3, in chunks. A chamber can't start in the Deep Dark, but its rooms can extend into it. Ominous trials change the encounters; they aren't a separate structure. Bedrock's placement and room changes have their own history, and its exact placement values aren't confirmed.

Notable loot

  • Heavy Core
  • Breeze Rod
  • Wind Charge
  • Flow Armor Trim Smithing Template
  • Bolt Armor Trim Smithing Template
  • Enchanted Book with Wind Burst
  • Music Disc: Creator
  • Enchanted Golden Apple

Mobs

  • Breeze
  • Zombie
  • Baby Zombie
  • Husk
  • Skeleton
  • Stray
  • Bogged
  • Spider
  • Cave Spider
  • Slime
  • Silverfish

History

  1. 23w45aJava

    Introduced trial chambers through the experimental Update 1.21 data pack.

  2. 24w05aJava

    Added vaults to chamber generation.

  3. 24w13aJava

    Added ominous vaults and revised chamber layouts and rewards.

  4. 1.21Java

    Released trial chambers as standard world generation.

  5. 1.21.0Bedrock

    Released trial chambers without requiring an experimental toggle.

  6. 1.21.20Bedrock

    Reduced generation in the Deep Dark.

  7. 1.21.2Java

    Added hallway encounters, revised entrance storage and traps, and fixed missing ominous vaults.

  8. 26.2Java

    Trial chambers can now generate in the new Sulfur Caves biome.

  9. 26.3Java

    Added chamber maps to abandoned-camp loot and introduced the distinct Buried Trial Chambers Map item.

Read the full article on the Minecraft Wiki ↗

Checked in game by SeedLookout

Screenshots

Tuff brick hall with copper trim and a green copper floor, walkways leading down into it
Trial chambers at 96, -20, 128Seed -5222399596891977076 · Java 26.3
Tuff brick hall with orange copper trim and a green copper floor, seen from above the floor
Trial chambers at 64, -29, 32Seed 41006135150685160 · Java 26.3
Tuff brick and copper walls around a teal copper floor, with copper grates and a dark drop below
Trial chambers at 0, -35, 112Seed 238277855897535 · Java 26.3
Tuff brick walls with copper blocks and a teal copper floor, a deepslate cave dropping away on the left
Trial chambers at 160, -34, 32Seed 7608428869712543 · Java 26.3
Tuff brick and copper walls with a teal copper floor, a dark cave opening on the left
Trial chambers at 16, -25, -304Seed -7078951977818456085 · Java 26.3

Screenshots from our in-game verification of each seed. Select one to open it at full size.

Seeds with this trial chambers

We found each trial chambers at these coordinates in the seed's Java version. Other versions and Bedrock may generate a different world.

SeedVersionVariantX, Y, Z
Dappled forest camp on a lake shore below an ice spikes field17108149081942125Java 26.3Trial chambers112, -34, 240
Mushroom island off a savanna coast, with an ocean monument and trial chambers-5222399596891977076Java 26.3Trial chambers96, -20, 128
Mushroom island by a coastal stone arch, with an ocean monument and trial chambers41006135150685160Java 26.3Trial chambers64, -29, 32
Dappled forest valley camp below snowy peaks, over an ancient city6378256306624431Java 26.3Trial chambers320, -28, 96
Pale garden camp on a cliff-edged plateau near 0, 07608428869712543Java 26.3Trial chambers160, -34, 32
Mushroom island in a frozen sea of icebergs-7078951977818456085Java 26.3Trial chambers16, -25, -304
Pillager outpost on a jungle coast, with a savanna village in view238277855897535Java 26.3Trial chambers0, -35, 112
Large plains village on rolling hills, with a flower forest camp to the south1429451576662801Java 26.3Trial chambers-336, -23, 48
Zombie village in a river valley, with a jungle ruined portal among its houses6161254073401392Java 26.3Trial chambers96, -28, 224
Snowy village on the edge of a swamp, with a swamp hut beside it221208994210622363Java 26.3Trial chambers80, -25, -224
Plains village on a sea cliff, above a bay with a shipwreck and an ocean portal13356518562158768Java 26.3Trial chambers160, -35, 48
Taiga village on a lakeshore, above the Sulfur Caves442860251699944Java 26.3Trial chambers96, -39, 128
Show 59 more seedsShow fewer seeds12 of 71
SeedVersionVariantX, Y, Z
Pale garden camp on a hilltop below a flat-topped rock, with snowy peaks behind17202526513719721Java 26.3Trial chambers-304, -26, 80
Taiga village with docks on a sandy bay, and an ocean ruined portal offshore2311978434985311Java 26.3Trial chambers112, -29, 32
Woodland mansion by a river in dark forest with giant mushrooms, and a taiga village23449166200361261Java 26.3Trial chambers160, -40, 32
Desert village on a green bay at the jungle edge, with a jungle ruined portal3369163785663072Java 26.3Trial chambers192, -29, 96
Plains village on a bay facing icebergs, above the Sulfur Caves and trial chambers244773005486829Java 26.3Trial chambers48, -37, 96
Ocean monument between a jungle coast and a mushroom island17036737413726777Java 26.3Trial chambers-224, -40, 144
Sparse jungle abandoned camp between rivers, with a shipwreck and a deeply buried ruined portal857638595174584Java 26.3Trial chambers64, -21, 208
Plains village on a coastal point, with a ruined portal at its edge and a buried beached shipwreck19265529694398426Java 26.3Trial chambers112, -31, 96
Dappled forest camp on stony river hills, with ice spikes among the dappled trees1332568118536636Java 26.3Trial chambers224, -31, 48
Pale garden camp on a hilltop at y 129, beside jungle slopes and giant red mushrooms6288608918385347Java 26.3Trial chambers48, -27, 112
Desert village between rivers and badlands, over trial chambers and lush caves707389573096835Java 26.3Trial chambers16, -23, 80
Coral coast with a shipwreck and desert ruined portal, and a jungle temple inland59908773697188Java 26.3Trial chambers-288, -32, 48
Pale garden camp on a high ridge, above a river through dark forest4895472382419828Java 26.3Trial chambers208, -24, 144
Snowy village by an ice spike river, with a pillager outpost and a tall ruined portal3086673498097895Java 26.3Trial chambers128, -20, 208
Taiga village on a high spruce plateau below a snowy peak, with a camp and portal700138229128108Java 26.3Trial chambers240, -25, 112
Snowy taiga camp under a rock spire, next to a snowy village on a frozen lake690525251047146Java 26.3Trial chambers224, -40, 32
Igloo on a stone column in a frozen gorge, with a meadow camp on a high hill399918057248930Java 26.3Trial chambers176, -36, 0
Savanna village in a badlands canyon, with a jungle temple in bamboo457518450142132Java 26.3Trial chambers48, -34, -288
Snowy village among ice spikes and frozen ponds, with an igloo above trial chambers328492470042664Java 26.3Trial chambers48, -40, 128
Desert village on sand islands in a jungle bay, with lush caves and a trial chamber5838641044221633Java 26.3Trial chambers48, -22, 160
Dappled forest camp at 0, 0 by a river, with a plains village to the south21949876318670997Java 26.3Trial chambers32, -34, 208
Plains village below a waterfall, with Sulfur Caves and a forest camp5133991228066333Java 26.3Trial chambers16, -33, 64
Snowy village at y 125 beside ice spikes, with an igloo in a frozen valley485253609757631Java 26.3Trial chambers320, -33, 0
Snowy village on an island in a frozen sea, with a beached shipwreck and a hilltop portal6656936858446620Java 26.3Trial chambers64, -25, 64
Savanna village on a coastal plateau, over Sulfur Caves and a trial chamber308628722620600Java 26.3Trial chambers16, -23, 64
Pale garden camp at y 141 on a forested hilltop, with a trial chamber and buried portal19180464107149712Java 26.3Trial chambers224, -27, 192
Mountain ruined portal in the shallows off a forested island, near an ocean monument839695448267121Java 26.3Trial chambers32, -28, 0
Plains village climbing a snowy mountain, with an ancient city to the north3233241926201645Java 26.3Trial chambers80, -35, 304
Sandy islets over a sunken shipwreck, with a coastal plains village1074557468761508Java 26.3Trial chambers160, -20, 128
Snowy village beside an ice spikes field, with a pillager outpost to the east200203700853529Java 26.3Trial chambers208, -25, 144
Dappled forest along a river, with a camp and a ruined portal in the trees4540005795369143Java 26.3Trial chambers32, -34, 64
Savanna village by a river with trial chambers underneath98921779325618Java 26.3Trial chambers80, -31, 32
Desert village on a river beside jungle hills, with lush caves nearby1214737611781281Java 26.3Trial chambers16, -29, 240
Taiga abandoned camp inside a riverside taiga village1835990232658953Java 26.3Trial chambers128, -20, 16
Ocean monument among icebergs in a frozen ocean, with an igloo to the north2311750628306715Java 26.3Trial chambers80, -27, 48
Taiga village on sand between water channels, over lush caves2865822087765634Java 26.3Trial chambers144, -39, 0
Plains village on a sandy ocean peninsula, above sulfur caves3074086031640167Java 26.3Trial chambers16, -32, 128
Snowy village with a lava pool by a frozen river, with an igloo and camp to the east371372112556809Java 26.3Trial chambers176, -34, 176
Ruined portal on the edge of a taiga village in old growth spruce forest667406256774050Java 26.3Trial chambers240, -33, 80
Two small mushroom islands between an ocean monument and a sunken shipwreck16669324208218993Java 26.3Trial chambers-240, -29, 208
Desert pyramid at the edge of a desert village, with a ruined portal beside it28462718234064871Java 26.3Trial chambers336, -25, 192
Taiga village beside a frozen bay full of icebergs1658433229300290Java 26.3Trial chambers80, -21, 240
Meadow camp beside a pale garden, with a jungle temple below6865797219394423Java 26.3Trial chambers-208, -20, 176
Savanna village on a lake causeway, with an outpost and camp1667552769884978Java 26.3Trial chambers48, -31, 144
Village with a pier house on a seagrass bay, and a beached wreck22708861381133973Java 26.3Trial chambers128, -38, 128
Desert village at the edge of the badlands, with an outpost911279098436064Java 26.3Trial chambers64, -32, 48
Ruined portal on a mushroom island, with an ocean monument7225203405476503Java 26.3Trial chambers256, -27, 16
Taiga village on a lake point, with a camp among its houses13213665042628Java 26.3Trial chambers48, -38, 288
Plains village among rivers, with a swamp hut on its edge84753882188559489Java 26.3Trial chambers112, -21, 128
Igloo on a snowy beach by an iceberg, with a taiga village1448753197383953Java 26.3Trial chambers240, -22, 16
Plains village on a high plateau, with an igloo on snowy slopes841762255836736Java 26.3Trial chambers32, -33, 224
Cherry grove and dappled forest under a snowy peak, with a zombie village8371336556850631860Java 26.3Trial chambers208, -22, 128
Cherry grove and dappled forest on a coastal ridge, over trial chambers-7311269624281633560Java 26.3Trial chambers64, -26, 128
Hillside village below snowy peaks with a dappled forest5751028428224877539Java 26.3Trial chambers0, -32, 256
Dappled forest on a river bend with a cherry grove camp-2620425120371619106Java 26.3Trial chambers32, -39, 192
Flower forest abandoned camp with trial chambers underground7778802864780158Java 26.3Trial chambers32, -31, 144
Abandoned camp in a badlands valley with a giant ruined portal109062250015565Java 26.3Trial chambers224, -21, 192
Small mushroom island with a shipwreck and an ocean monument-8531640712777030001Java 26.3Trial chambers96, -31, 272
Ocean monument between a mushroom island and a desert coast38756481678573377Java 26.3Trial chambers0, -27, 0

Sources

The description, generation rules, variants, loot, mobs and history above are summarised from the Minecraft Wiki article Trial Chambers, retrieved 2026-09-30. Minecraft Wiki text is available under CC BY-NC-SA 3.0. We have not checked these facts in game.

Seed numbers, coordinates and screenshots come from SeedLookout's own in-game verification. About verified seeds