Trial Chambers40 blocks
Villageat spawn
Ruined Portal256 blocks
Minecraft Trial Chamber Finder
By the ChunkScan Team · Updated October 2026
Quick answer: To find a trial chamber, enter your world seed on this page and choose Java or Bedrock: the map marks every trial chamber near any coordinates. Chambers generate deep underground, so travel to the marker and dig down. Link straight to a result with /trial-chamber-finder?seed=YOUR_SEED.
Trial chambers are large underground structures added in Minecraft 1.21, built from copper and tuff and filled with trial spawners and vaults. This finder maps them for any seed, entirely in your browser, so your seed is never sent to a server. Trial chambers generate deep underground, so the map marks the chamber origin — dig near the marker to reach the rooms. Positions differ between Java and Bedrock for the same seed, so pick your edition first.
Java seeds with a trial chamber within 1,000 blocks, closest first
Distances in blocks from spawn
- Trial Chambersat spawn
- Ruined Portal115 blocks
Buried Treasure175 blocks
- Trial Chambersat spawn
- Ruined Portal93 blocks
Ocean Ruins204 blocks
- Trial Chambersat spawn
- Buried Treasure152 blocks
Abandoned Camp342 blocks
- Trial Chambersat spawn
- Village137 blocks
- Abandoned Camp237 blocks
- Trial Chambersat spawn
- Ruined Portal230 blocks
- Abandoned Camp257 blocks
- Trial Chambersat spawn
- Ruined Portal96 blocks
- Village284 blocks
- Trial Chambersat spawn
- Abandoned Camp144 blocks
Shipwreck183 blocks
- Trial Chambersat spawn
- Ruined Portal301 blocks
Desert Pyramid327 blocks
- Trial Chambersat spawn
Ancient City154 blocks- Ruined Portal167 blocks
- Trial Chambersat spawn
- Ruined Portal71 blocks
- Buried Treasure105 blocks
- Trial Chambersat spawn
- Abandoned Camp208 blocks
- Ruined Portal387 blocks
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Already have a world? Open any seed in the Minecraft seed map to see its biomes and structures, or browse all seed tools.
What is a trial chamber?
Trial chambers are large underground structures added in Minecraft 1.21. Built from copper and tuff deep in the world, each one is a network of rooms holding trial spawners that summon waves of mobs when you approach. Clear the waves and the spawner drops rewards, while vaults scattered through the chamber unlock with trial keys for extra loot.
Where do trial chambers spawn?
Trial chambers generate underground, usually between about Y=-40 and the deepslate layers, so you almost never see one from the surface. Enter your seed above and the map marks the chamber origin; dig straight down nearby or tunnel in from a cave and you will hit the copper-and-tuff walls that give the structure away.
How do I get the Mace from a trial chamber?
Ordinary trial spawners drop consumables and the odd enchanted item. The real prize is the ominous variant: drink an ominous bottle before you start and the spawners turn ominous, the fights get harder, and ominous vaults can drop the heavy core needed to craft the Mace — the strongest single-hit weapon in the game. A seed with a trial chamber near spawn is the fastest route to one.
Are trial chambers the same on Java and Bedrock?
Trial chambers exist in both editions, but their positions differ between Java and Bedrock for the same seed, so pick your edition above before you read coordinates off the map. The internal loot and mechanics are the same on both platforms.