
Modrinth · Minecraft mod
Combat Effects
Allows to apply effects when entities engage combat, highly customizable with regex support.
Quick answer
Which Combat Effects release should I use?
Combat Effects 1.0.0 targets 1.21.1 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. All 1 required mods have matching files.
Where it goes
Is Combat Effects required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Combat Effects 1.0.0 need?
1.0.0. Change the file and its required mods may change too.
Install Necronomicon API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Combat Effects without breaking your instance.
Built for Combat Effects 1.0.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.0. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Necronomicon API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.0. It opens that exact file at the source.
About this project
What does Combat Effects add?

A modpack utility mod that allows applying effects when entities engage in combat. Supports regex!
This can be useful for things such as:
- Applying a specific effect while fighting bosses
- Applying poison/bleeding on hit for certain entities
- Applying an effect (e.g., glow) when players engage in PvP
- Anything else involving applying effects while in combat
Config Preview

Project description from Modrinth.
Pick your setup
Combat Effects by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
3 loader builds1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Combat Effects versions and loaders
1.0.0
combat_effects-neoforge-1.0.0-1.21.1.jar
27 Nov 2024
1.0.0
combat_effects-fabric-1.0.0-1.21.1.jar
27 Nov 2024
1.0.0
combat_effects-fabric-1.0.0-1.20.1.jar
27 Nov 2024
Looking for an older file? The official Modrinth project page is in Resources.