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RFTools DimensionsMinecraft mod for 1.21.1

This is an addon mod for RFTools which handles creation of dimensions

client and servernewest supported 1.21.1TechnologyWorldgen
Latest version
1.21-12.0.4
Minecraft
1.8.9 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
81.9k
Updated
3 mo ago
Available on
Modrinth
Space NodePartner

Host RFTools Dimensions servers

One click and RFTools Dimensions is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version RFTools Dimensions declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.16.5Forge, NeoForge8+declared14 Jan 2021
1.16.4Forge, NeoForge8+declared29 Oct 2020
1.12.2NeoForge, Forge8+declared18 Sept 2017
1.12.1NeoForge, Forge8+declared3 Aug 2017
1.12NeoForge, Forge8+declared2 Jun 2017
1.11.2Forge, NeoForge8+declared21 Dec 2016
1.11NeoForge, Forge8+declared14 Nov 2016
1.10.2NeoForge, Forge8+declared23 Jun 2016
1.10NeoForge, Forge8+declared8 Jun 2016
1.9.4NeoForge, Forge8+declared10 May 2016
1.9NeoForge, Forge8+declared29 Feb 2016
1.8.9NeoForge, Forge8+declared3 Dec 2015

Download

From RFTools Dimensions’s own host. Nothing is re-hosted here.

All 60 releases
1.21-12.0.4beta16 Jun 2026

rftoolsdim-1.21-12.0.4.jar · 1.7 MB · for 1.21.1

Download latest
060577f1d7c4…
Older versions24
  • 1.20-11.0.1116 Jun 20261.20.11.7 MB774 downloadse2ea23a33b41…Get
  • 1.21-12.0.38 Dec 20251.21.11.7 MB3.6k downloads9520d300dc52…Get
  • 1.21-12.0.26 Dec 20251.21.11.7 MB71 downloads4e65c1762f80…Get
  • 1.21-12.0.12 Dec 20251.21.11.7 MB94 downloadsd3f18431b1cc…Get
  • 1.21-12.0.026 Nov 20251.21.11.7 MB122 downloads1bb0e8eb411a…Get
  • 1.20-11.0.108 Nov 20241.20.11.7 MB19.8k downloadsb037c027322a…Get
  • 1.20-11.0.930 Jul 20241.20.11.7 MB2.8k downloads2758a276bcd9…Get
  • 1.20-11.0.829 Jul 20241.20.11.7 MB109 downloadsbf5bfc24a7b5…Get
  • 1.20-11.0.731 May 20241.20.11.7 MB1.7k downloads66365ed1ed4e…Get
  • 1.19.2-9.1.1031 May 20241.19.21.7 MB1.6k downloads627b10ab3fc0…Get
  • 1.18-8.0.1131 May 20241.18.21.6 MB660 downloads0de282305aab…Get
  • 1.20-11.0.623 Apr 20241.20.11.7 MB972 downloads3c32a7d82eee…Get
  • 1.20-11.0.524 Dec 20231.20.11.7 MB11.2k downloadsb35c26e52260…Get
  • 1.20-11.0.417 Nov 20231.20.11.7 MB2.9k downloads451161a064b5…Get
  • 1.20-11.0.35 Nov 20231.20.11.7 MB1.2k downloadsd439eb60382f…Get
  • 1.19.2-9.1.95 Nov 20231.19.21.7 MB520 downloads8554a8a866c7…Get
  • 1.19.2-9.1.830 Oct 20231.19.21.7 MB134 downloads3d151374a157…Get
  • 1.20-11.0.230 Oct 20231.20.11.7 MB860 downloadse6ce05793291…Get
  • 1.20-11.0.124 Oct 20231.20.11.7 MB1.6k downloads8bd406eaea30…Get
  • 1.20-11.0.020 Jun 20231.20.11.7 MB5.4k downloads84d21d7be70f…Get
  • 1.19.4-10.1.321 Apr 20231.19.41.7 MB270 downloadsc46e0606156f…Get
  • 1.19.3-10.0.321 Apr 20231.19.31.7 MB151 downloads1c397e88e317…Get
  • 1.19.2-9.1.721 Apr 20231.19.21.7 MB600 downloadsffa5f6cd5de6…Get
  • 1.19.2-9.1.617 Apr 20231.19.21.7 MB122 downloads470083a7d8f7…Get

Frequently asked

Does RFTools Dimensions work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version RFTools Dimensions 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 RFTools Dimensions support?

Everything the author has declared, from 1.8.9 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install RFTools Dimensions on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which loader does RFTools Dimensions need?

NeoForge, Forge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for RFTools Dimensions?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is RFTools Dimensions 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 RFTools Dimensions?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download RFTools Dimensions safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .