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UltraEffectsMinecraft mod for 1.21.11

A very configurable mod that adds some effects from Ultrakill into Minecraft, such as the parry flash!

client onlynewest supported 1.21.11Game MechanicsDecoration
Latest version
v7.5
Minecraft
1.20.1 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
8.2k
Updated
9 mo ago
Available on
Modrinth

Screenshots

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.20.1Fabric17+declared12 Jun 2023

Download

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

v7.5release17 Dec 2025

ultraeffects-v7.5.jar · 2.0 MB · for 1.21.11

Download latest
db6a489e7f76…
Older versions13
  • v7.424 Nov 20251.21.10, 1.21.92.0 MB564 downloads5abc7ca50868…Get
  • v7.314 Oct 20251.21.10, 1.21.92.0 MB376 downloadscd89d8790453…Get
  • v7.212 Oct 20251.21.10, 1.21.92.0 MB53 downloadsef47179f9afb…Get
  • v7.112 Oct 20251.21.8, 1.21.72.0 MB493 downloads6ffa98214961…Get
  • v712 Oct 20251.21.62.0 MB87 downloadsf5466e00cb04…Get
  • v7-b16 Sept 20251.21.61.9 MB67 downloads7d48394fe837…Get
  • v619 Jun 20251.21.8, 1.21.7, 1.21.61.8 MB514 downloads360291ed9868…Get
  • 1.20.112 Jun 20251.20.11.8 MB1.7k downloadsa52af72757ea…Get
  • v59 Jun 20251.21.51.8 MB706 downloads472fd584d18e…Get
  • v410 May 20251.21.51.8 MB246 downloads572d2fca56d7…Get
  • v31 May 20251.21.51.8 MB124 downloads0276f7e2d8ae…Get
  • v230 Apr 20251.21.41.8 MB612 downloadsf4d8cdd7a710…Get
  • v120 Mar 20251.21.41.8 MB198 downloadsfc259239d347…Get

Frequently asked

Does UltraEffects work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version UltraEffects 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 UltraEffects support?

Everything the author has declared, from 1.20.1 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install UltraEffects on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does UltraEffects 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 UltraEffects?

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 UltraEffects under?

LicenseRef-All-Rights-Reserved, 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 UltraEffects?

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 UltraEffects 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.

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Details from Modrinth, where the author last updated it on 17 Dec 2025. 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? .