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Mas EffectsMinecraft mod for 1.21.11

A mod focused on enhancing Minecraft PVP visually! Mace shockwave, Custom totem particles and more!

client onlynewest supported 1.21.11Utility
Latest version
2.1.0
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
389.4k
Updated
4 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 Mas Effects 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
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

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

2.1.0release5 May 2026

MasEffects 1.21.11.jar · 0.6 MB · for 1.21.11

Download latest
1db4df6a2661…
Older versions5
  • 2.0.017 Nov 20251.21.100.6 MBc3d4dd470f19…Get
  • 1.0.021 May 20251.21.10.6 MB806cd6cbd14b…Get
  • 1.0.321 May 20251.21.50.6 MB8eef8630a96a…Get
  • 1.0.221 May 20251.210.6 MB91691f75abbd…Get
  • 1.0.115 May 20251.21.40.6 MB7ca22696ca00…Get

Frequently asked

Does Mas Effects work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Mas Effects 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 Mas Effects support?

Everything the author has declared, from 1.21 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 Mas Effects 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 Mas Effects 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 Mas Effects?

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 Mas Effects 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 Mas Effects?

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 Mas Effects 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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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? .