Minecraft Trial Chambers Finder

Use our Minecraft Trial Chambers Finder to locate exact trial chambers coordinates from your world seed. Supports Minecraft Java and Bedrock Edition with fast, accurate results—no cheats or /locate commands required.

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Find Trial Chambers in Minecraft

World Seed

Player X

Player Z

World Version

NOT AN OFFICIAL MINECRAFT PRODUCT. NOT ENDORSED BY OR CONNECTED TO MOJANG OR MICROSOFT.

At a glance

Trial Chambers: Quick Answer

Trial chambers generate underground in the Overworld, with the entrance room between Y -40 and Y -20 and most rooms between Y -20 and 0. There is one per 34×34-chunk region, at the same coordinates in Java and Bedrock. Enter your seed and coordinates above to get the nearest ones, or buy a buried trial chambers map from a journeyman cartographer for 12 emeralds and a compass.

Y level: Start room Y -40 to -20, most rooms Y -20 to 0
How common: One per 34×34-chunk region (about every 544 blocks)
Java vs Bedrock: Same coordinates on both editions
No seed?: Cartographer map: 12 emeralds + a compass

What Is a Trial Chamber?

Trial chambers are underground combat structures added in Minecraft 1.21 (the Tricky Trials update). They are built from tuff bricks and copper, and are full of trial spawners that release waves of mobs when you get close. Beat a spawner and it drops loot, often a trial key that opens one of the vaults.

Mobs don't spawn naturally inside trial chambers. Everything you fight comes from the trial spawners, and the number of mobs scales with how many players are nearby.

What's Inside a Trial Chamber

Feature	What it does
Trial spawners	Spawn waves of mobs. When cleared, each has a 50% chance to drop a trial key for every player, otherwise other loot.
Vaults	Opened with a trial key. Each vault can be opened once per player and ejects 2 to 5 stacks of loot.
Ominous vaults	Opened with an ominous trial key. The only source of the heavy core (7.5% chance per unlock).
Breeze	Always one of the spawner mobs. Shoots wind charges and drops 1 to 2 breeze rods.
Chests, barrels, pots and dispensers	Extra loot spread through the corridors and rooms.

Besides the breeze, each chamber picks one mob from each group for its spawners: a melee mob (husk, spider or zombie), a ranged mob (bogged, skeleton or stray) and a small melee mob (baby zombie, cave spider, silverfish or slime).

Vault loot includes emeralds, arrows, iron ingots, wind charges, ominous bottles, diamonds, golden apples, enchanted books and enchanted bows.

Where Trial Chambers Generate

Underground in the Overworld only.
The starting room is between Y -40 and Y -20, but most rooms sit between Y -20 and 0.
One trial chamber per 34×34-chunk region (about every 544 blocks), at a random spot inside the region.
A deep dark biome can cancel the trial chamber in its region.
Trial chambers are at the same coordinates in Java and Bedrock, so one seed gives the same results on both.

How to Find a Trial Chamber

Get your world seed with /seed, or from the world settings screen.
Enter the seed and your X and Z coordinates in the Trial Chamber Finder above, and pick your edition and version.
Travel to the nearest result and dig down to around Y -20. Look for tuff bricks, copper blocks and unnaturally flat walls.
No seed? Trade with a journeyman cartographer for a buried trial chambers map (12 emeralds and a compass). In Java 26.3 and Bedrock 26.50 and later, these maps can also turn up in the secret chests of abandoned camps.

Ominous Trials and the Mace

Drink an ominous bottle to get Bad Omen, then walk into view of a trial spawner. Your Bad Omen turns into Trial Omen, which lasts 15 minutes per level of Bad Omen, and every trial spawner within 15 blocks that can see you becomes ominous.

Ominous trial spawners are harder but drop ominous trial keys. Use one on an ominous vault for a 7.5% chance at a heavy core. Combine the heavy core with a breeze rod to craft the mace.

Frequently Asked Questions

What Y level are trial chambers at?

The starting room of a trial chamber generates between Y -40 and Y -20, but the structure spreads out from there and most of its rooms end up between Y -20 and 0. Digging or caving around Y -20 gives you the best chance of breaking into one.

How rare are trial chambers?

Trial chambers are common. The world is split into 34×34-chunk regions and each region gets one trial chamber at a random spot, unless a deep dark biome cancels it. That puts one roughly every 544 blocks, but they are hidden underground, so a seed finder or a cartographer map is the fastest way to reach one.

Can you find trial chambers without the seed?

Yes. Journeyman cartographer villagers sell buried trial chambers maps for 12 emeralds and a compass, and each map points to the nearest trial chamber the cartographer hasn't already mapped. In Java 26.3 and Bedrock 26.50 and later, these maps also appear in abandoned camp secret chests.

Are trial chambers in the same place in Java and Bedrock?

Yes. Trial chambers are one of the few structures that generate at the same coordinates in Java and Bedrock Edition with the same seed, so the coordinates from the Trial Chamber Finder work on both editions.

How do you get a mace from a trial chamber?

Start an ominous trial by drinking an ominous bottle and walking into view of a trial spawner. Beat the ominous spawners to get ominous trial keys, then open ominous vaults. Each unlock has a 7.5% chance to give a heavy core, which you craft with a breeze rod to make a mace.

How many times can you open a vault?

Each vault opens once per player. Every player in the world can unlock the same vault with their own trial key and get their own loot, but the same player can't open that vault again. To loot more, move on to other vaults or other trial chambers.