An experimental shaderpack that dramatically distorts Minecraft's visuals using mathematical functions. Features dynamic psychedelic post-processing. A cursed pack by ultraepicultramods. Compatible with Iris and OptiFine across Minecraft 1.16 – 1.21.7. Licensed MIT, so the download is mirrored right here on MineSpecs — no ads, no redirects.

How to install Mathematically Unplayable

1. 1Install a shader loader for Minecraft 1.16 – 1.21.7 — Iris (pairs with Sodium) or OptiFine. Mathematically Unplayable is a shaderpack, so it needs a loader to run.
2. 2Download the Mathematically Unplayable .zip from the button above — keep it zipped. It is mirrored on MineSpecs, so there is no ad-gate or redirect.
3. 3Drop the .zip into your .minecraft/shaderpacks folder (%appdata%\.minecraft\shaderpacks on Windows, ~/Library/Application Support/minecraft/shaderpacks on macOS).
4. 4Launch the game, open Options → Video Settings → Shaders, and select Mathematically Unplayable.

First time? How to install Minecraft shaders

Performance & what to expect

ultraepicultramods gives Mathematically Unplayable no performance rating, so check your frame rate at your usual render distance. The look is cursed.

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Mathematically Unplayable is created by ultraepicultramods and mirrored here under its MIT licence. MineSpecs is an unofficial fan project and is not affiliated with ultraepicultramods, Mojang Studios or Microsoft.