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Hardcore Fluid OverhaulMinecraft mod for 1.21.1

Changing Minecraft fluid handling to be semi-realistic and push for more creative usages.

client and servernewest supported 1.21.1
Latest version
1.4
Loader
Fabric
Licence
CC-BY-4.0
Downloads
110.5k
Updated
6 d ago
Available on
Modrinth
Space NodeOur hosting

Host Hardcore Fluid Overhaul servers

One click and Hardcore Fluid Overhaul is installed with the right loader, on hardware built for it.

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

Minecraft versions

Every version Hardcore Fluid Overhaul declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.1Fabric17+declared12 Jun 2023

Download

From Hardcore Fluid Overhaul’s own host. Nothing is re-hosted here.

1.4beta18 Oct 2025

hardcore-fluid-overhaul-1.4-1.21.1.jar · 0.1 MB · for 1.21.1

Download latest
8b9bc69016c3
Older versions6
  • 1.3.112 Mar 20251.21.10.1 MB33.8k downloads0b2f93ededc3Get
  • 1.329 Jan 20251.21.10.1 MB161 downloadsc419d9f53befGet
  • 1.29 Jan 20251.21.10.1 MB137 downloads58a2c19bbd19Get
  • 1.1.122 Nov 20241.21.10.1 MB200 downloadse1f09ebb7727Get
  • 1.117 Nov 20241.21.10.0 MB96 downloadsa39c283224eeGet
  • 1.011 Aug 20241.21.10.0 MB1.9k downloads7712922c05aeGet

Frequently asked

Does Hardcore Fluid Overhaul work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Hardcore Fluid Overhaul 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 Hardcore Fluid Overhaul support?

Everything the author has declared, from 1.20.1 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 Hardcore Fluid Overhaul 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 Hardcore Fluid Overhaul support?

Fabric. 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 Hardcore Fluid Overhaul?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Hardcore Fluid Overhaul under?

CC-BY-4.0, 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 Hardcore Fluid Overhaul?

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 Hardcore Fluid Overhaul 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Last checked 5 d 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? .