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Delirium Shaders

Delirium Shaders

SHADER
A horror shader pack for Iris and OptiFine that slowly fills your world with things that aren't there — spiders on the walls, faces in the stone, shadow people at the edge of your vision, and the Hat Man standing in the doorway.
by WetCardboardMC
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Updated Nov 10, 2026
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A horror shader pack for Iris and OptiFine that slowly fills your world with things that aren't there — spiders on the walls, faces in the stone, shadow people at the edge of your vision, and the Hat Man standing in the doorway.

Delirium v1.0.zip
MC 1.21, 1.20.2, 1.21.8, 1.20.5, 1.21.5, 1.21.4, 1.20.1, 1.20, OptiFine, 1.20.6, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.20.4, 1.20.3, Iris, 1.21.2, 1.21.9, 1.21.10, 1.21.11, 26.1
Release 2026-10-25 Get

Requirements & install

How to use this shader in Minecraft
Shader loader
Iris OptiFine
Minecraft
1.21.5 – 26.1
Install folder
.minecraft/shaderpacks

How to install shaders

  1. Install a shader loader for your Minecraft version: Iris (with Sodium) or OptiFine.
  2. Download the shader pack .zip file (do not extract it).
  3. Put the .zip into the shaderpacks folder (.minecraft/shaderpacks).
  4. In game open Options → Video Settings → Shader Packs, select the pack and apply it.
Browse more: Iris shaders OptiFine shaders Shaders for 26.1 All shaders

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