Retrus Shaders (1.21.7, 1.20.1) – Bring the VHS Horror Aesthetic to Minecraft

Retrus Shaders for Minecraft (1.21.7, 1.20.1) is an experimental shader pack that radically transforms the look and feel of the game by mimicking the grainy, analog visuals of old VHS tapes. Perfect for horror maps, liminal builds, or atmospheric storytelling, this shader draws direct inspiration from the Kane Pixels Backrooms series and similar found-footage horror.

Built using Minecraft’s native “Fabulous!” graphics engine, Retrus requires no additional mods or shader loaders, making it incredibly accessible. Whether you’re creating unsettling short films, playing survival in a creepy custom map, or just want a fresh eerie vibe in your world, this shader delivers a nostalgic and immersive experience. It’s fully compatible with Minecraft 1.17 and above and is considered complete, meaning you won’t have to worry about missing features or constant updates.

Retrus Shaders

Features:

  • VHS-Style Visual Filters:
    • Emulates the look of VCR footage with grain, flicker, and noise overlays
    • Color distortion, chromatic aberration, and scanline effects for full immersion
  • Liminal Horror Ambience:
    • Perfect for eerie backrooms, abandoned facilities, or dreamcore environments
    • Enhances the uncanny feeling with soft blur and analog camera motion
  • No Shader Loader Required:
    • Runs on Minecraft’s built-in “Fabulous!” graphics settings
    • No need for OptiFine, Iris, or additional mod installation
  • Low System Requirements:
    • Lightweight compared to most modern shaders
    • Works on most PCs that can run Minecraft with “Fabulous!” graphics enabled
  • Complete and Stable:
    • Feature-complete and maintained for versions 1.17 through 1.21.7
    • No missing features or unstable effects ready to use out of the box

Screenshots:

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Requires:

Optifine HD or Iris Shaders or Oculus Mod

How to install:

Why use Retrus Shaders?

While most shaders aim for realism or fantasy beauty, Retrus Shaders focuses on mood and atmosphere. It’s designed for Minecraft players who want to build unsettling, retro-styled worlds especially those working on horror maps, storytelling series, or backrooms recreations.

If you’re a content creator seeking a unique visual theme, or a horror map builder looking for that grainy analog touch, this shader is ideal. It sets itself apart from other shaderpacks by transforming the entire tone of your world, making every hallway, cave, or empty room feel unnervingly liminal.

FAQs

Do I need OptiFine or Iris to use Retrus Shaders?

No, Retrus runs directly on Minecraft’s built-in “Fabulous!” graphics engine and does not require any external shader loader.

Is Retrus Shaders good for horror maps?

Yes! It’s specifically designed to simulate VHS/found-footage aesthetics, making it perfect for eerie horror builds, backrooms, or liminal spaces.

Does it support all Minecraft versions?

Retrus is compatible with all versions from 1.17 and up, including 1.21.7 and 1.20.1.

Will this shader reduce my FPS?

Not significantly. Since it’s built on the “Fabulous!” graphics engine, it is much lighter than traditional shaders that require post-processing engines.

For All Versions from Minecraft 1.7.10 to Minecraft 1.21.7, 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21, 1.20.1