
Modrinth · Minecraft mod
Superflat Dimensions
Collection of datapacks that create Superflat Overworld, Nether, and End Dimensions, with all Structures and Biomes.
Quick answer
Which Superflat Dimensions release matches 1.20.2-pre1?
Superflat Dimensions 1.4.2+mod targets 1.20, 1.20.1, 23w31a with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Superflat Dimensions required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Superflat Dimensions 1.4.2+mod need?
1.4.2+mod on 1.20.2-pre1. 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 Superflat Dimensions without breaking your instance.
Built for Superflat Dimensions 1.4.2+mod on 1.20.2-pre1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.4.2+mod. It targets 1.20, 1.20.1, 23w31a with Fabric, Forge, NeoForge; 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 1.4.2+mod. It opens that exact file at the source.
About this project
What does Superflat Dimensions add?
Superflat Dimensions Datapack Collection
This is a collection of datapacks that overrides the default world generation to functionally apply superflat to all dimensions, while retaining all biomes and structures.
Please note when using this, just add the datapack on the world creation screen and create a world like normal. You should not to use the Superflat Preset.
Why does it replace the default overworld, and why can't it use a preset?
Datapacks allow creators to edit many things in Minecraft, but some things are hardcoded, meaning they require a mod to change. Datapacks do allow for custom superflat presets, but unfortunately they only allow for single-biome worlds. Datapacks also allow for custom world presets, but unfortunately, any changes outside of the terrain must be done globally, meaning anytime I need to change the structure or feature generation to get it to fit, it would change it for all presets. If I made a preset and someone was using the mod version of this pack, then they could easily be unknowingly altering vanilla worldgen!Compatibility Notes:
These datapacks do not work with any biome mods! There is a technical reason behind this because of the limitations of datapacks. I may be able to look into resolving this with Lithostitched though.
If you've never used terrain mods together, you should know that they generally override each other. The same case is for this mod.
Versions:
Classic Superflat Dimensions
Three blocks of terrain and one block of bedrock at y=0. No trees/foliage, caves, or ores. Just structures and biomes.
Modeled after the "Classic" Superflat preset
Superflat Dimensions
Exactly like the Classic Superflat Dimensions, but with trees and other biome features!
"I wish the world actually had terrain from -64 to 64..." / "Where did 'Flat Dimensions' Go?"
Checkout Flat Dimensions (BEING REVIEWED)
Generation Notes:
Pre-1.21.2 Only
- Phantoms can only spawn above Y=63
- Most aquatic mobs can only spawn from ~Y=50 to Y=63
Sponsor: Sparked Host
Project description from Modrinth.
Pick your setup
Superflat Dimensions by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
24w45a
5 loader builds24w44a
5 loader builds24w40a
5 loader builds24w39a
5 loader builds24w38a
5 loader builds24w37a
5 loader builds24w36a
5 loader builds24w35a
5 loader builds24w34a
5 loader builds24w33a
5 loader builds24w21b
5 loader buildsShowing the newest 12 of 86 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
Superflat Dimensions versions and loaders
1.4.2+mod
superflat-dimensions-1.4.2.jar
23 Jan 2026
1.4.2
Classic_Superflat_Dimensions_1.4.2.zip
23 Jan 2026
Looking for an older file? The official Modrinth project page is in Resources.