CurseForge · Minecraft mod
Flat World Portal
Flat World Portal
Quick answer
Which Flat World Portal release should I use?
Flat World Portal targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Flat World Portal required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Flat World Portal need?
Flat World Portal. Change the file and its required mods may change too.
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 Flat World Portal without breaking your instance.
Built for Flat World Portal. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Flat World Portal. It targets 1.21.1 with 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
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Flat World Portal. It opens that exact file at the source.
About this project
What does Flat World Portal add?
Flat World Portal
This mod allows you to create a special portal that teleports you into a completely flat world dimension.
To activate the portal, you must build a 5x5 frame made of Copper Blocks.
The center area of the frame must be filled with Redstone Blocks.

Flat World Generation
The flat world is generated with the following layers:
Y 105: Grass Block
Y 101 to 104: Dirt Blocks
Y 0 to 100: Stone Blocks
Y -63 to 0: Deepslate
Y -64: Bedrock
Project description from CurseForge.
Pick your setup
Flat World Portal by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Flat World Portal versions and loaders
Flat World Portal
flatworldportal-1.0.0.jar
23 May 2026
Looking for an older file? The official CurseForge project page is in Resources.