
Modrinth · Minecraft mod
Seeded Dimensions
Adds a config to set per-dimension seeds!
Quick answer
Which Seeded Dimensions release matches 1.20.6?
Seeded Dimensions 1.0.0 targets 1.20.1, 1.20.2, 1.20.3 with Fabric. Do not install it on the client. It must be installed on the dedicated server. All 1 required mods have matching files.
Where it goes
Is Seeded Dimensions required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Seeded Dimensions 1.0.0 need?
1.0.0 on 1.20.6. Every mod below is checked against that same setup.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Seeded Dimensions without breaking your instance.
Built for Seeded Dimensions 1.0.0 on 1.20.6. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.0. It targets 1.20.1, 1.20.2, 1.20.3 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.0. It opens that exact file at the source.
About this project
What does Seeded Dimensions add?
Seeded Dimensions - 
This mod simply adds in a config to set the seed per-dimension.
Config
// Located at config/seeded-dimensions.json
{
"minecraft:overworld": "default",
"minecraft:the_nether": "default",
"minecraft:the_end": "default"
// "NAMESPACE:DIMENSION": 2
}
You can add any dimension to this list, use "default" to use the default config file seed, or set a number for a custom seed.
If you run /execute in ... it will auto-fill what dimensions exist, that tag shown is the tag that should be in the config here.
Example

Project description from Modrinth.
Pick your setup
Seeded Dimensions by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.2
1 loader build1.21.1
1 loader build1.21
1 loader buildShowing the newest 12 of 18 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Seeded Dimensions versions and loaders
1.0.0
seeded-dimensions-1.0.0.jar
7 Dec 2025
Looking for an older file? The official Modrinth project page is in Resources.