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shader pack

Bloody ShadersMinecraft shader pack for 1.21.1

"Basically, a Minecraft shader to create a darker, bloodier atmosphere this October 31st for Halloween. Enjoy it, and have a Happy Halloween.

client onlynewest supported release 1.21.1CursedMediumReflectionsAtmosphere
Latest version
1.3
Works with
OptiFine, Iris
Licence
MIT
Downloads
15.8k
Updated
7 mo ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Bloody Shaders declares support for, newest first, with the Java runtime that version needs.

Other shader packs
MinecraftThroughJavaEvidenceReleased
1.21.1OptiFine, Iris21+declared8 Aug 2024
1.21OptiFine, Iris21+declared13 Jun 2024
1.20.6Iris, OptiFine21+declared29 Apr 2024
1.20.5OptiFine, Iris21+declared23 Apr 2024
1.20.4OptiFine, Iris17+declared7 Dec 2023
1.20.3OptiFine, Iris17+declared4 Dec 2023
1.20.2Iris, OptiFine17+declared20 Sept 2023
1.20.1OptiFine, Iris17+declared12 Jun 2023
1.20OptiFine, Iris17+declared2 Jun 2023
1.19.2Iris, OptiFine17+declared5 Aug 2022
1.19OptiFine, Iris17+declared7 Jun 2022
1.18OptiFine, Iris17+declared30 Nov 2021
1.17OptiFine, Iris16+declared8 Jun 2021
1.16OptiFine, Iris8+declared23 Jun 2020

Download

From Bloody Shaders’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

Most recently published release

1.3release14 Apr 2026

BloodyShader1.3.zip · 23 KB · for 1.21.1, 1.21, 1.20.6, 1.20.5, 1.20.4 +8 more · Iris, OptiFine

Choose file on publisher ↗
ca40db29b6da…
Older versions4

Frequently asked

Does Bloody Shaders work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Bloody Shaders declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Bloody Shaders support?

Everything the author has declared, from 1.16 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Bloody Shaders on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

What licence is Bloody Shaders under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Bloody Shaders?

You need a shader loader first: Iris (with Sodium) or OptiFine. Put the downloaded file in your shaderpacks folder and select it in the video settings shader screen. The shader loader, not the pack, decides which Minecraft versions work.

Where do I download Bloody Shaders safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from Modrinth, where the author last updated it on 14 Apr 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .