Kill Effects
by builtdoor
Kill Effects is a Fabric mod that plays customizable visual effects on the client whenever an entity dies, and it also replaces the vanilla critical hit particles and sounds.
What it does
Kill Effects runs on the client and renders every effect locally. Its server installation is required, and the mod sends packets when a kill happens, which lets the client react to events from the server. Real lightning, 3D ghosts skinned to match the killed player, custom PNG particles, fireworks and shockwaves can all be set to fire when a kill happens, and lightning uses the vanilla thunder look and the minecraft:lightning bolt, so it can set targets alight without touching any gameplay rules. The author states the mod is safe to use on multiplayer servers.
The mod covers both kill feedback and hit feedback. A custom critical hit particle and custom hit sounds can replace the defaults, and a Match Vanilla option restores the original look in one click. Each kill that fires an effect is chosen by presets and entity filters, and a finished setup can be copied to the clipboard or written to a file that others can import. Files are published for Fabric only, across 12 release versions 1.21 – 1.21.11, under the MIT License, and the project is not open source.
Key features
Kill effects
Effects play when an entity dies, including simple flashes and more cinematic sequences built from several layers.
Custom critical hits
The vanilla critical hit particle can be swapped for a custom design, and the hit sound can be muted or replaced.
Presets and entity filters
Built-in presets provide starting points, and filters limit which entities trigger effects.
Shareable configurations
Configurations travel as text: copy them to the clipboard or write them to a file, then load that file on a different installation.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want visual feedback on kills and hits, and server owners who want to offer cosmetic effects on a Fabric server.
How it compares
KillFX is also a Fabric, client-side only mod for kill effects, published for 1.20.1 – 1.21.11 under All rights reserved and not open source. Prisma Kill Effect is a Fabric, client-side only mod for 1.21.4 – 1.21.11 under the MIT License, and it is not open source. CritTweaks is a Fabric, client-side only mod for 1.21 – 26.2 under the GNU General Public License v3.0 only, and it is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Kill Effects | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-06-16 |
| KillFX | Fabric | 1.20.1 – 1.21.11 | Client-side only | 2026-02-28 |
| Prisma Kill Effect | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-02-15 |
| CritTweaks | Fabric | 1.21 – 26.2 | Client-side only | 2026-06-02 |
Questions
Does Kill Effects need to be installed on the server?
Which Minecraft versions does Kill Effects support?
Can the critical hit look and sound be restored to vanilla?
In the catalog
Kill Effects is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from builtdoor
Similar mods
What the author says
Fully client-side, ridiculously customizable kill effects for Minecraft. Trigger real lightning, 3D skin-matched ghosts, custom PNG particles, fireworks, shockwaves, and more the instant something dies — plus fully customizable critical hit particles and hit sounds.
Official listing
- Modrinth page
- modrinth.com/mod/kill-effects-fx
- Owner
- builtdoor
- Published
- 2026-06-04
- Updated on Modrinth
- 2026-06-16
- Facts verified
- 2026-10-15