Update 1.21 without trial chambers

This datapack enables the experimental features of update 1.21 but excludes trial chambers and breezes. It's particularly important to note that in versions 1.20.5 and above, the new raid mechanics will also be active - pillagers will now drop ominous bottles instead of applying the bad omen effect.

What's included in the datapack

Crafter

Copper bulbs

Copper blocks

Tuff blocks

New raid mechanics

What's disabled

Trial chambers

Trial spawners and vaults

Heavy core

Breeze

Bogged skeleton

Trial key

Wind charge

Installation instructions

IMPORTANT: After installation, DO NOT enable the separate "update_1_21 (feature)" datapack!

Adding to a new singleplayer world

1. When creating a new world, open the "Data Packs" selection screen
2. Drag the downloaded datapack zip file into the game window
3. Move the datapack to the "Selected" column and click "Done"
4. Accept the "Experimental Features Warning"
5. Change other world settings and click "Create New World"

Adding to an existing singleplayer world

1. Select your world and click "Edit"
2. Click "Open World Folder"
3. Enable the "Update 1.21" feature flag in the level.dat file. An easy way to do this is by installing the NBT Viewer extension for VSCode
4. Open the level.dat file in VSCode by dragging the file from the file explorer to the VSCode window
5. Inside Data, add a new list tag called enabled_features
6. Inside this list, add two new string tags with minecraft:vanilla and minecraft:update_1_21. Select the yellow string icon when adding the first tag.
7. Press Ctrl + S to save the file. Make sure the world is not open in-game when editing the file!
8. In the world save folder, find the datapacks folder and put the downloaded zip file there
9. You can now open the world!

Adding to a new multiplayer server

1. Download the server.jar from the 1.20.4 article page
2. Place the server.jar file in the server folder
3. Inside this same folder, create the folders world/datapacks/
4. Put the downloaded zip file there
5. Run the server.jar for the first time

   java -Xmx1024M -Xms1024M -jar server.jar nogui

6. Agree to the EULA by editing eula.txt
7. Run the server.jar again. You should see Found new data pack file/update_1_21_no_trial_chambers_1.20.4.zip, loading it automatically in the logs.

Adding to an existing multiplayer server

1. Shut down the server
2. Modify the world/level.dat file following the same instructions from "Adding to an existing singleplayer world"
3. Add the downloaded zip file to the world/datapacks/ folder
4. Restart the server