mod
RZeroMinecraft mod for 1.21.1
Return by Death. Completely rewind the timeline and the world state to your last checkpoint upon death.
- Latest version
- 0.2.10
- Minecraft
- 1.21.1
- Java
- Java 21+
- Loaders
- Fabric, NeoForge
- Licence
- GPL-3.0-only
- Downloads
- 1.1k
- Updated
- 1 mo ago
- Available on
- Modrinth
Our hostingHost RZero servers
One click and RZero is installed with the right loader, on hardware built for it.
- 1.21.1
- Fabric
- NeoForge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Minecraft versions
Every version RZero declares support for, newest first, with the Java runtime that version needs.
Download
From RZero’s own host. Nothing is re-hosted here.
For Minecraft 1.21.1
Choose the loader you use before downloading.
- Get Fabric
Fabric
0.2.10 · 24 Sept 2026 · rzero-fabric-0.2.10.jar
- Get NeoForge
NeoForge
0.2.1 · 22 Jul 2026 · rzero-neoforge-0.2.1.jar
Most recently published release
rzero-fabric-0.2.10.jar · 0.6 MB · for 1.21.1 · Fabric
15a512d27100…Older versions11Hide older versions
- 0.2.99 Sept 20261.21.10.5 MB
3aa3dbabd16a…Get - 0.2.81 Sept 20261.21.10.5 MB
c3c3ff0b15a7…Get - 0.2.715 Aug 20261.21.10.5 MB
bfdf27fe5678…Get - 0.2.65 Aug 20261.21.10.4 MB
4e57abcd6732…Get - 0.2.53 Aug 20261.21.10.4 MB
22298fa6a398…Get - 0.2.425 Jul 20261.21.10.3 MB30 downloads
1b7dd4624ccb…Get - 0.2.323 Jul 20261.21.10.3 MB8 downloads
ea84cf6eb66f…Get - 0.2.223 Jul 20261.21.10.3 MB2 downloads
b8f76e6d37eb…Get - 0.2.122 Jul 20261.21.10.3 MB8 downloads
83ece31029a1…Get - 0.222 Jul 20261.21.10.3 MB2 downloads
68f23e2e04d2…Get - 0.128 May 20261.21.10.2 MB222 downloads
aa5c1830f379…Get
Dependencies
What RZerodeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.
Frequently asked
Does RZero work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version RZero declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Do I need to install RZero 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 platform or loader does RZero support?
Fabric, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for RZero?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What does RZero need to run?
It declares Fabric API and Cloth Config API as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.
What licence is RZero under?
GPL-3.0-only, 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 RZero?
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 RZero 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? .