
Modrinth · Minecraft mod
Mas Effects
A mod focused on enhancing Minecraft PVP visually! Mace shockwave, Custom totem particles and more!
Quick answer
Which Mas Effects release should I use?
Mas Effects 2.1.0 targets 1.21.11 with Fabric. It must be installed on the client. Do not install it on the dedicated server. All 4 required mods have matching files.
Where it goes
Is Mas Effects required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Mas Effects 2.1.0 need?
2.1.0. Change the file and its required mods may change too.
Install Mod Menu, Cloth Config API, Text Placeholder API, Fabric API first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Mas Effects without breaking your instance.
Built for Mas Effects 2.1.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.1.0. It targets 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Mod Menu, Cloth Config API, Text Placeholder API, Fabric API first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.1.0. It opens that exact file at the source.
About this project
What does Mas Effects add?
Mas Effects is a fabric mod that enhances PvP visually (Mainly focused on Mace PvP)
Trailer (Mas Effects 2.0):
Trailer (Mas Effects 1.0):
The mod has the following features:
- Mace Smash Shockwave

- Custom Totem Effect

- Change Hitbox Opacity and Colors
- Ender Pearl trail effect

- Player Death Effect

What the mod's configuration allows you to change:
- Mace shockwave opacity and size
- Totem effect opacity
- Hitbox opacity and colors
- Ender Pearl trail opacity
Additionaly, Red Effects adds some other effects that didn't make it to the main mod, you can check it here!
Project description from Modrinth.
Pick your setup
Mas Effects by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.11
1 loader build1.21.10
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.1
1 loader build1.21
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Mas Effects versions and loaders
2.1.0
MasEffects 1.21.11.jar
5 May 2026
2.0.0
MasEffects 1.21.10.jar
17 Nov 2025
1.0.0
maseffects-1.21.1.jar
21 May 2025
1.0.3
maseffects-1.21.5.jar
21 May 2025
1.0.2
mas-effects-1.21.jar
21 May 2025
1.0.1
mas-effects-1.21.4.jar
15 May 2025
Looking for an older file? The official Modrinth project page is in Resources.