Minecraft Java 1.21 Mods
Browse 335 free mods for Minecraft Java 1.21 — popular picks include Karma Shader Nightmare, Liminal Shader [LOST], Modern PSX Shaders.
Updated daily
Karma Shader Nightmare
A cinematic horror Minecraft shader pack that turns the dark into a living threat. Features dynamic fear mechanics, hallucination warping, drifting fog banks, a blood moon, desaturated colors, and its terrifying inverted sea ceiling.
Liminal Shader [LOST]
Perfect for horror maps, liminal space builds, and atmospheric survival gameplay.
Modern PSX Shaders
Lightweight modernised PSX Shaders.
DOShader
this Minecraft shader simulates the 8bit effect from old DOS games
Osh
Fisheye lens distortion to the texture by radially warping UV coordinates.
ItemDuper-Pro
Perfect for players who want convenient item duplication with modern improvements and reliable functionality.
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Enderman Death Silence
Enderman will stop their long scream when they die. Highlighy optimized mod that provides a minor satisfying improvement.
SenAbyssShader
A modified version of Complementary Unbound, tuned for the Sensory Abyss horror mod.
Modern Netty
fabric mod that adds experimental iouring and kqueue support
Despatra's CRT
A basic CRT shader with some customizability

RETRO_VHS_Screen
A minecraft styled vhs shader for horror modpacks, with flickering rec, and some more cool things.
Cosinus Shader
Sinus, but the opposite!
Red And Black Shaders
A Minecraft Shader that changes everything to black and all the entities to Red.
More Villages Datapack
Adds more villages to the game.
PosterizationShader
PosterizationShader is a lightweight shader pack for Minecraft that applies an artistic posterization effect to the game's visuals. The shader reduces the number of colors to create a stylized "poster" look with visible color bands.
sillyrendering
makes your game renderer silly!
[AI slop] Polymer Patch for Guard Villagers
Polymer Patch for [AI slop] Guard Villagers made 99% by AI
Create: Electrolysis
[READ DESC] A Create addon focusing on making superheated blaze burners not require a whole ahh blaze cake farm just for some blue coloured blazes
Renford Tomlinson
Best Shaderpack for Youtube Videos / Thumbnails / Horror Content
Blind Shader
A shader that makes it hard to see on any distance.
Carmine
A shaderpack that adds a Carmine theme to the game - Perfect for horror mods and adventure maps!

Translucent Lava
simple mod which makes lava look like water
Zefir's Optimizations
Mod that adds async entity movement using Akka actors
Minimalist GUI (Mods Support)
A professional 1.20.1 interface overhaul. Minimalist, clean, and optimized for deep mod integration. Redefining the modern Minecraft aesthetic.
The Classic Script
This is a single-player horror modpack throws you into a creepy, unpredictable world where everythink feels alive. Survival won’t be easy, because something is always watching.
Acid Shaders Refurbished
The acid shader is a shader designed to make you puke/dizzy. And now its in 26.2!
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
Tweaks
Change some values in Minecraft using gamerules
Orbital Staff
This Mod adds Many New overpowered Items to the game AND MORE!
Retro Dead Modpack
Retro Dread: A 1.21.4 horror modpack with old Minecraft textures, eerie shaders, ambient sounds, and Herobrine stalking you from the fog.
Lost Tape Shader
Nostalgic analog-horror shader for Iris & Oculus
Terminator Vision Shader
Terminator Vision — See the world through the eyes of T-800!
Endless City LITE
Turn your world into a vast & endless city, and try to survive this barren landscape. A more performance friendly version.
Unforseen Consequences
OpenGL ES 3.0 in Minecraft
Demonic Possession
Animated demonic distortion and screen corruption shader.