data pack
1:1 NetherMinecraft data pack for 1.21.5
Make the nether coordinates 1:1 with the overworld. Encourage using the overworld to travel!
- Latest version
- 0.1+mod
- Minecraft
- 1.20.3 to 1.21.5
- Works with
- Quilt, NeoForge, Forge, Fabric
- Licence
- MIT
- Downloads
- 3.8k
- Updated
- 17 mo ago
- Available on
- Modrinth
Our hostingHost 1:1 Nether servers
Deploy a server with 1:1 Nether already added to the world, on hardware built for it.
- 1.21.5
- Data pack
- Quilt
- NeoForge
- Forge
- One click install
- Version matched
- Automatic backups
- NVMe SSD
Minecraft versions
Every version 1:1 Nether declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.5 | Data pack, Quilt, NeoForge, Forge, Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Data pack, Fabric, Forge, NeoForge, Quilt | 21+ | declared | 8 Aug 2024 |
| 1.21 | Data pack, Quilt, NeoForge, Forge, Fabric | 21+ | declared | 13 Jun 2024 |
| 1.20.6 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 29 Apr 2024 |
| 1.20.5 | NeoForge, Quilt, Forge, Fabric, Data pack | 21+ | declared | 23 Apr 2024 |
| 1.20.4 | Data pack, Quilt, NeoForge, Forge, Fabric | 17+ | declared | 7 Dec 2023 |
| 1.20.3 | NeoForge, Fabric, Data pack, Forge, Quilt | 17+ | declared | 4 Dec 2023 |
Download
From 1:1 Nether’s own host. Nothing is re-hosted here.
For Minecraft 1.21.5
Choose the loader you use before downloading.
- Choose file on publisher ↗
Fabric, Forge, NeoForge, Quilt
0.1+mod · 23 May 2025
Multiple loaders are listed; verify the file before downloading.
- Get release
Loader not listed
0.1 · 18 Jan 2024 · 1-to-1-nether.zip
Most recently published release
1-to-1-nether-0.1.jar · 22 KB · for 1.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +5 more · Fabric, Forge, NeoForge, Quilt
3dcf865c3c01…Older versions1Hide older versions
- 0.118 Jan 20241.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +5 more8 KB1.1k downloads
e446c4774041…Get
Frequently asked
Does 1:1 Nether work on Minecraft 1.21.5?
Yes. 1.21.5 is the newest Minecraft version 1:1 Nether declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does 1:1 Nether support?
Everything the author has declared, from 1.20.3 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install 1:1 Nether on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
What licence is 1:1 Nether under?
MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install 1:1 Nether?
Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.
Where do I download 1:1 Nether safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .