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 chambers40 blocks
- Ruined portal35 blocks
Shipwreck69 blocks
- Trial chambers107 blocks
- Village227 blocks
- Shipwreck232 blocks
- Trial chambers102 blocks
- Village57 blocks
Buried treasure110 blocks
- Trial chambers100 blocks
- Buried treasure91 blocks
- Village107 blocks
- Trial chambers178 blocks
- Village163 blocks
Ocean ruins192 blocks
- Trial chambers185 blocks
- Buried treasure185 blocks
- Village215 blocks
- Trial chambers234 blocks
- Buried treasure40 blocks
- Village150 blocks
- Trial chambers240 blocks
- Ocean ruins149 blocks
- Shipwreck170 blocks
- Trial chambers237 blocks
- Shipwreck170 blocks
- Ocean ruins173 blocks
2 more seeds
- Trial chambers281 blocks
- Shipwreck198 blocks
- Buried treasure250 blocks
- Trial chambers313 blocks
- Buried treasure148 blocks
- Ocean ruins184 blocks
Not quite it? Try these:
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.
New seeds when a new Minecraft version ships: Atom feed