I can't believe it's not Optifine!

I can't believe it's not Optifine!

Modpack

Modpack designed to be very close to the Optifine experience.

Client or server LightweightOptimization
717 downloads
2 followers
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To install I can't believe it's not Optifine!, download the Modrinth App. For instructions with other launchers, please see our documentation.

I can't believe it's not Optifine! 1.21.4.0

Download Report

Changelog

Backported to 1.21.4
Disabled until updated to newest version
-Animatica
-FabricSkyBoxes
-FabricSkyBoxes Interop
-Nvidium

Discontinuation
-Faster Random

Dependencies

dependency-iconNoxesium Version 2.6.2 is embedded
dependency-icon[ESF] Entity Sound Features Version 0.6 is embedded
dependency-icon[ETF] Entity Texture Features Version 6.2.10 is embedded
dependency-iconFabric Language Kotlin Version 1.13.3+kotlin.2.1.21 is embedded
dependency-iconConcurrent Chunk Management Engine (Fabric) Version 0.3.1.3.0+1.21.4 is embedded
dependency-iconCaxton Version 0.6.0-alpha.6+1.21.4-FABRIC is embedded
dependency-iconNuit (formerly FabricSkyboxes) Version mc1.21-0.7.4 is embedded
dependency-iconModernFix Version 5.20.3+mc1.21.4 is embedded
dependency-iconI see you over there! Version 1.0.3+1.21.3 is embedded
dependency-iconIris Shaders Version 1.8.8+1.21.4-fabric is embedded
dependency-iconPuzzle Version 2.0.5-fabric is embedded
dependency-iconMod Menu Version 13.0.3 is embedded
dependency-iconAnimatica Version 0.6.1+1.21 is embedded
dependency-iconContinuity Version 3.0.0+1.21.4 is embedded
dependency-iconSodium Version mc1.21.4-0.6.13-fabric is embedded
dependency-iconNoisium Version 2.5.0+mc1.21.4 is embedded
dependency-iconFabric API Version 0.119.2+1.21.4 is embedded
dependency-iconYetAnotherConfigLib (YACL) Version 3.6.6+1.21.4-fabric is embedded
dependency-iconReese's Sodium Options Version mc1.21.4-1.8.3+fabric is embedded
dependency-iconOptiGUI Version 2.3.0-beta.7+1.21.2 is embedded
dependency-iconSodium Core Shader Support Version 1.3.4-sodium0.6.13-fabric is embedded
dependency-iconText Placeholder API Version 2.5.2+1.21.3 is embedded
dependency-iconCapes Version 1.5.5+1.21.4 is embedded
dependency-iconLambDynamicLights - Dynamic Lights Version 4.1.2+1.21.4 is embedded
dependency-iconNvidium Version 0.2.9-beta is embedded
dependency-iconLithium Version mc1.21.4-0.15.3-fabric is embedded
dependency-iconMore Culling Version 1.2.10 is embedded
Nuit Interop (formerly FabricSkyBoxes Interop) Version mc1.21-1.4.0 is embedded
dependency-iconEntity Culling Version 1.7.4 is embedded
dependency-iconCloth Config API Version 17.0.144+fabric is embedded
dependency-iconSodium Extra Version mc1.21.4-0.6.1+fabric is embedded
dependency-iconObsidianUI Version 0.2.11+mc1.21.4-fabric is embedded
dependency-icon[EMF] Entity Model Features Version 2.4.1 is embedded
dependency-iconBetterGrassify Version 1.6.0+fabric.1.21.4 is embedded
dependency-iconLanguage Reload Version 1.7.3+1.21.4 is embedded
dependency-iconZoomify Version 2.14.2+1.21.3 is embedded

Files

I can't believe it's not Optifine! 1.21.4.mrpack(39.85 KiB) Primary Download

Metadata

Release channel

Beta

Version number

1.21.4.0

Loaders

Fabric

Game versions

1.21.4

Downloads

28

Publication date

May 20, 2025 at 5:35 AM

Publisher

Jecobe

Jecobe

Owner

Version ID

Links

Donate on Ko-fi

Featured versions

See all
I can't believe it's not Optifine! 1.21.0.1
Fabric 1.21
Release

Project members

Jecobe

Owner

Details

Licensed Apache-2.0
Published a year ago
Updated 4 months ago