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Modrinth · Minecraft mod
Random Chunks
Chunk(s) get randomized, thats basically it
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Random Chunks release matches 1.21.3 Forge?
Best match for your filters 2.0.3
Game version 1.21.3
Loader Forge
Random Chunks 2.0.3 targets 1.21.3 with Forge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Random Chunks required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
Client Optional
Dedicated server Optional
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source marks this as usable on both the client and server.
What else does Random Chunks 2.0.3 need?
2.0.3 on 1.21.3 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Random Chunks without breaking your instance.
Built for Random Chunks 2.0.3 on 1.21.3 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.0.3. It targets 1.21.3 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.0.3. It opens that exact file at the source.
About this project
What does Random Chunks add?
Random Chunks
Every chunk in your World can be randomized.
I recommend using the Fabric Version. It has often a better performance.
Mod is available for Forge and Fabric and later also for Neoforge.
Config Screen
You open the Config Screen with K in Default.
Customization
- You can select which blocks will be used by the Randomizer (Falling Blocks in Default disabled)
- You can enable/disable chunks, so chunks wont be randomized again
- Turn on Performance Mode. Chunks need longer to randomize but its smoother and has less lag
- Change Randomization Radius. Only Chunks you enter, or in a radius
Project description from Modrinth.
Pick your setup
Random Chunks by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.1.1
1 loader buildMinecraft version
26.1
1 loader buildMinecraft version
1.21.11
2 loader buildsMinecraft version
1.21.10
2 loader buildsMinecraft version
1.21.9
2 loader buildsMinecraft version
1.21.6
2 loader buildsMinecraft version
1.21.3
2 loader buildsMinecraft version
1.21.1
2 loader buildsMinecraft version
1.20.6
2 loader buildsMinecraft version
1.20.4
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Random Chunks versions and loaders
2.0.3
chunktransformer-2.0.3.jar
10 Mar 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.21.3 · Forge setup 1.21.3Forge release
Looking for an older file? The official Modrinth project page is in Resources.
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