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OptimisticMC project artwork

Modrinth · Minecraft modpack

OptimisticMC

This mod collection will allow you to play Minecraft with higher FPS, if you have a very weak computer you should download it. Even if you have a powerful enough PC you should also try my collection.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which OptimisticMC release matches 26.1?

Updated yesterday
Best match for your filters OptimisticMC 26.1v2
Game version 26.1
Loader Fabric 0.18.5

OptimisticMC 26.1v2 is a complete pack release for 26.1 with Fabric 0.18.5. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 31 mods in this pack file.

Pack setup

How should I set up OptimisticMC for players and a server?

Use OptimisticMC 26.1v2 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install OptimisticMC 26.1v2
Dedicated server setup Match OptimisticMC 26.1v2
Pack loader Fabric 0.18.5

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Plan the server requirements Read the Minecraft installation guide
Referenced mods 31
Client only 15
Server only 2
Not labelled 14

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for OptimisticMC?

OptimisticMC 26.1v2 on 26.1. The pack contents and setup notes below stay tied to that release.

31 mods in this pack file

The selected pack release is OptimisticMC 26.1v2. That file is for Minecraft 26.1 with Fabric 0.18.5. It contains 31 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is OptimisticMC?

🚀 OptimisticMC: Peak Performance for Everyone

OptimisticMC is a meticulously curated mod collection designed to squeeze every bit of performance out of your hardware. Whether you are playing on an aging laptop or a high-end gaming rig, this pack ensures your Minecraft experience is buttery smooth and stutter-free.

✨ Why choose OptimisticMC?

Extreme FPS Boost: Advanced optimization of the graphics engine and data processing.
Lightweight & Clean: Only essential performance mods—no bloatware, no unnecessary features.
Multiplayer Ready: Perfectly optimized for both solo survival and large-scale server play.

🛠 Installation & Setup:

Download: We recommend using the Modrinth App for the best experience.
Allocate RAM (Mandatory): Go to the "Java and memory" tab, check "Custom memory allocation," and set your maximum RAM. This is required before your first launch to ensure stability.
Stay Updated: If you are using the Modrinth App, click the "Update all" button to get the latest performance patches.

🐛 Feedback & Support

Found a bug or experiencing a crash? Let us know!
Contact: OptimisticMC report.

Project description from Modrinth.

Mods in OptimisticMC 26.1v2

Open any mod on Modpacks.ch to check its files and dependencies.

alternate-current-mc26.1-1.9.0.jar SHA-1 c332e3ea2fd5f9e70a5a72498a9fede3e6a84015 · Modrinth version PGm6TCxh · Project link unavailable Server only
BadOptimizations-2.4.1-26.1-fabric.jar SHA-1 9636073ca8f378ea796b5d13bffac146a7f2f0f3 · Modrinth version gjIvugXc · Project link unavailable Client only
balm-fabric-26.1-26.1.0.6.jar SHA-1 2636c42d89f9b6fd352384c9d3361b6756e9e71a · Modrinth version 9GKnh8vV · Project link unavailable Side not labelled
c2me-fabric-mc26.1-0.3.7+alpha.0.61.jar SHA-1 a67b297fea485c75015adc1f7e4ebecdbf69d9d4 · Modrinth version tKXPZtpT · Project link unavailable Side not labelled
cloth-config-26.1.154.jar SHA-1 832f9047bc4af13587709c74f7c37e1c8579d1eb · Modrinth version GFM8zh9J · Project link unavailable Side not labelled
Clumps-fabric-26.1-26.1.0.2.jar SHA-1 a5504f821ecb9ab0abd1a0ee873887555aabe711 · Modrinth version 9kN5zABQ · Project link unavailable Side not labelled
collective-26.1.0-8.16.jar SHA-1 d4450ce2cfdd0f8d05d4f213d7ed88b917bc2f7f · Modrinth version 20oNLyvX · Project link unavailable Side not labelled
dynamic-fps-3.11.6+minecraft-26.1.0-fabric.jar SHA-1 66f8cc53a00be11374fc4cdd33ac909e90eb54f3 · Modrinth version zGhSzRSB · Project link unavailable Client only
entityculling-fabric-1.10.0-mc26.1.jar SHA-1 6b83d2cadbdb67d0c05e56cb62e0ccb24409890a · Modrinth version YSbzFHRt · Project link unavailable Client only
fabric-api-0.145.4+26.1.2.jar SHA-1 f6a5958eae1644ce8e8622b513bc6a795594675b · Modrinth version fm7UYECV · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.10+kotlin.2.3.20.jar SHA-1 9873294abf498f509453d37b0a5ba019f4570ffb · Modrinth version 21TRTKmh · Project link unavailable Side not labelled
ferritecore-9.0.0-fabric.jar SHA-1 eac76ff0f3753422c61b2c44487d0d195d88d4bc · Modrinth version d5ddUdiB · Project link unavailable Side not labelled
FpsReducer2-fabric-26.1-2.16.jar SHA-1 d219ed9687ad82d93d2617a0e385d6508899cf8d · Modrinth version VLVD4RZX · Project link unavailable Client only
ImmediatelyFast-Fabric-1.15.1+26.1.1.jar SHA-1 25780ccb6f42d49280223f6aeb6603f8b624c9e5 · Modrinth version UM3jWaXo · Project link unavailable Client only
iris-fabric-1.10.9+mc26.1.1.jar SHA-1 c30e04509a1b284372cb9037b07714d4223ae91a · Modrinth version MwcLS51S · Project link unavailable Client only
language-reload-1.7.6+26.1.jar SHA-1 9ccc08bee9868e32e14c799298b88dade31d2c3d · Modrinth version pBt7L8Nq · Project link unavailable Client only
lithium-fabric-0.22.1+mc26.1.jar SHA-1 4075ade8217564086bfb46555c8e0858d202a073 · Modrinth version W0ZXKJy9 · Project link unavailable Side not labelled
lithostitched-1.6.4-fabric-26.1.jar SHA-1 c40e29842e159887dbfd45b3f6d335ed4ac90b33 · Modrinth version VRT5Kd0J · Project link unavailable Server only
modmenu-18.0.0-alpha.8.jar SHA-1 996783ff7b322e73c3a6799fecc5ca3023958514 · Modrinth version jvjwXH6l · Project link unavailable Client only
moreculling-fabric-26.1.1-1.7.0-beta.5.jar SHA-1 7831be27edaf8581c6bba15867b2a47f4ee9b625 · Modrinth version KJBkanxk · Project link unavailable Client only
owo-lib-0.13.0+26.1.jar SHA-1 71d435de2aaa7c71767cd3f8388547eac5acc404 · Modrinth version QmA84JcU · Project link unavailable Side not labelled
placeholder-api-3.0.0-beta.2+26.1.jar SHA-1 01afdd9eab5ae1b11acfa90266fc6d4f1cea1fa2 · Modrinth version MQX6V6Qi · Project link unavailable Side not labelled
reeses-sodium-options-fabric-2.0.5+mc26.1.1.jar SHA-1 e1c704acfb5bde6df36b23c3a38faff1f02abb73 · Modrinth version p88Tf9YM · Project link unavailable Client only
ResourcefulConfig-4.0.1.jar SHA-1 96c6afabeec4f7c0468bb17b3c29fb1bb6aa0125 · Modrinth version GMW14IUd · Project link unavailable Side not labelled
ScalableLux-0.2.0+fabric.2b63825-all.jar SHA-1 3875a697a9bb014c06aa3a62d72e8bec3de23160 · Modrinth version gYbHVCz8 · Project link unavailable Side not labelled
Searchables-fabric-26.1-1.0.4.jar SHA-1 1c5eaea2ca23dd0fd168245c770e6545c9bceeb5 · Modrinth version jayVAixj · Project link unavailable Client only
smoothscroll-2.7.2.jar SHA-1 fd5dd138bd325ff87e97e993965ca891df905dc1 · Modrinth version jMEgoFYp · Project link unavailable Client only
sodium-extra-fabric-0.8.6+mc26.1.1.jar SHA-1 634a4e9ff4cea16073d4ab2af289fcdf934d5cc1 · Modrinth version hf1Xa5Gs · Project link unavailable Client only
sodium-fabric-0.8.9+mc26.1.1.jar SHA-1 48b949ec71365788dfd4e89d489f7abd504aa709 · Modrinth version uGvVQBnw · Project link unavailable Client only
ukulib-fabric-2.0.0+26.1.jar SHA-1 c1b8365877cffbb7525718c77b430c8c31813b1d · Modrinth version asZKdLUQ · Project link unavailable Client only
yet_another_config_lib_v3-3.9.2+26.1-fabric.jar SHA-1 0282a3772dea69135dbb66773fa82190ac7a39b9 · Modrinth version h2FGeDHG · Project link unavailable Side not labelled

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OptimisticMC by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

35 available setups

Showing the newest 12 of 35 game versions. Older files are in the list below.

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

OptimisticMC versions and loaders

2 of 66 releases match
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Looking for an older file? The official Modrinth project page is in Resources.

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