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River ReduxMinecraft mod for 1.21.8

Make's Minecraft's rivers much more exciting to explore!

server onlynewest supported release 1.21.8AdventureWorldgen
Latest version
0.4.1
Minecraft
1.19 to 1.21.8
Java
Java 21+
Loaders
Fabric, Quilt, NeoForge, Forge
Licence
LGPL-3.0-only
Downloads
1.7M
Updated
13 mo ago
Available on
Modrinth
Space NodeOur hosting

Host River Redux servers

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

  • 1.21.8
  • Fabric
  • Quilt
  • 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 River Redux declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.8Fabric, Quilt, NeoForge, Forge21+declared17 Jul 2025
1.21.7Forge, Quilt, NeoForge, Fabric21+declared30 Jun 2025
1.21.6Forge, Quilt, NeoForge, Fabric21+declared17 Jun 2025
1.21.5Forge, Quilt, NeoForge, Fabric21+declared25 Mar 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, Quilt, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Fabric, Forge, NeoForge, Quilt21+declared22 Oct 2024
1.21.1Fabric, Quilt, NeoForge, Forge21+declared8 Aug 2024
1.21Forge, Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.1Forge, Quilt, NeoForge, Fabric17+declared12 Jun 2023
1.20NeoForge, Quilt, Forge, Fabric17+declared2 Jun 2023
1.19.2Fabric, Quilt, NeoForge, Forge17+declared5 Aug 2022
1.19.1Forge, Quilt, NeoForge, Fabric17+declared27 Jul 2022
1.19NeoForge, Forge, Fabric, Quilt17+declared7 Jun 2022

Download

From River Redux’s own host. Nothing is re-hosted here.

For Minecraft 1.21.8

Choose the loader you use before downloading.

  • NeoForge

    0.4.0-forge · 10 Sept 2025 · riverredux-forge-0.4.0.jar

    Get NeoForge

Most recently published release

0.4.1release6 Oct 2025

riverredux-fabric-0.4.1.jar · 51 KB · for 1.21.1 · Fabric

Download this release
e7b801c6e9f5…
Older versions4

Frequently asked

Does River Redux work on Minecraft 1.21.8?

Yes. 1.21.8 is the newest Minecraft version River Redux 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 River Redux support?

Everything the author has declared, from 1.19 up to 1.21.8. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install River Redux on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does River Redux support?

Fabric, Quilt, NeoForge, Forge. 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 River Redux?

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 licence is River Redux under?

LGPL-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 River Redux?

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 River Redux 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.

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Details from Modrinth, where the author last updated it on 6 Oct 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .