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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 1.18.1?

Updated 3 days ago
Best match for your filters OptimisticMC 1.18.1v1
Game version 1.18.1
Loader Fabric 0.19.2

OptimisticMC 1.18.1v1 is a complete pack release for 1.18.1 with Fabric 0.19.2. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 25 mods in this pack file.

Pack setup

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

Use OptimisticMC 1.18.1v1 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 1.18.1v1
Dedicated server setup Match OptimisticMC 1.18.1v1
Pack loader Fabric 0.19.2

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 25
Client only 10
Server only 0
Not labelled 15

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 1.18.1v1 on 1.18.1. The pack contents and setup notes below stay tied to that release.

25 mods in this pack file

The selected pack release is OptimisticMC 1.18.1v1. That file is for Minecraft 1.18.1 with Fabric 0.19.2. It contains 25 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 1.18.1v1

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

architectury-3.9.66.jar SHA-1 7613e2f0cf9be178ebf5ac464854e63c9c0ee1ad · Modrinth version 468H7PSo · Project link unavailable Side not labelled
Bookshelf-Fabric-1.18.1-12.0.23.jar SHA-1 35049aad2667e8a720c6dbd27a2111be803c2d10 · Modrinth version QJgTkH1h · Project link unavailable Side not labelled
c2me-fabric-mc1.18.1-0.2.0+alpha.6.55-all.jar SHA-1 dcc477b1b2f92d5ccad62435657aa985ad8bd8ce · Modrinth version VVlAcu8X · Project link unavailable Side not labelled
Chunky-1.2.164.jar SHA-1 c936401a30394972b102d62a2553927aa79bd501 · Modrinth version JJMpSOeW · Project link unavailable Side not labelled
cloth-config-6.5.102-fabric.jar SHA-1 d8996df838204ebe2aa7314b0a95914d326b37e0 · Modrinth version BLMp2TRt · Project link unavailable Side not labelled
Clumps-fabric-1.18.1-8.0.0+5.jar SHA-1 d0b0974f63a1f9618657e8ef16dba7909ef2a13e · Modrinth version 3H5r9v4h · Project link unavailable Side not labelled
Controlling-fabric-1.18.1-9.0+15.jar SHA-1 138070f68e7e42a7828c36f263cfec9eb86c6731 · Modrinth version Rp48Zp8p · Project link unavailable Client only
dynamic-fps-3.11.4+minecraft-1.18.0-fabric.jar SHA-1 f48daa087f39e32b2ecb52632303b7ced3d75c6a · Modrinth version maKzAqnY · Project link unavailable Client only
entityculling-fabric-mc1.18-1.5.1.jar SHA-1 523c57485a469c581d7a9bd18ec86c7a92a0ec93 · Modrinth version 4GD4dwQK · Project link unavailable Client only
fabric-api-0.46.6+1.18.jar SHA-1 c73a64983ee850cda3b98e6bff9831fa6e9260b6 · Modrinth version kbtdliUm · 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-4.1.2-fabric.jar SHA-1 11d973fe8601658fade9f9981f568efb4b8a5dce · Modrinth version FMdIAsIi · Project link unavailable Side not labelled
krypton-0.1.9.jar SHA-1 466a8a26949497a3b11886a788e6e156a8b03d24 · Modrinth version vJQ7plH2 · Project link unavailable Side not labelled
language-reload-1.2.1.jar SHA-1 4fc9f67f810bbe4a0958999c6eda9c7ebfd1b797 · Modrinth version lkLis7II · Project link unavailable Client only
lazydfu-0.1.2.jar SHA-1 2efec5781f1271bdcdae462eee402ccb97bff6fe · Modrinth version C6e265zK · Project link unavailable Side not labelled
lithium-fabric-mc1.18.1-0.7.8.jar SHA-1 8b7cd216fee54b9acc261005cae5acbc856b1933 · Modrinth version Ehsd7YUl · Project link unavailable Side not labelled
modelfix-1.8-fabric (1).jar SHA-1 2702ce386bb0e84ea7bc5cac86c314e38389fc89 · Modrinth version 7ainrOrH · Project link unavailable Client only
modmenu-3.0.1.jar SHA-1 5b7328a666250330b3dd6a7a5190783d618a0307 · Modrinth version eueI9czw · Project link unavailable Client only
moreculling-1.18.2-0.1.2.jar SHA-1 ed531453999b78922a306c8ea9c6632f268bd8ff · Modrinth version kyoVWOaa · Project link unavailable Client only
owo-lib-0.5.2+1.18.jar SHA-1 b8d0a93e93f5d627625ebf020402552828e6f344 · Modrinth version i8cpzMnQ · Project link unavailable Side not labelled
placeholder-api-1.1.3+1.17.1.jar SHA-1 a4c2d44306bf2ecd98db24be12993789696ec85f · Modrinth version FplcrCus · Project link unavailable Side not labelled
reeses_sodium_options-1.4.9+mc1.18.2-build.66.jar SHA-1 c896ca9fe8bee67085d2700f003dc0739f453af9 · Modrinth version hl16W0ql · Project link unavailable Client only
sodium-extra-0.4.7+mc1.18.1-build.50.jar SHA-1 d902307a5a258c57d5ef8785bb58f73bed606215 · Modrinth version DIcY6vej · Project link unavailable Client only
sodium-fabric-mc1.18.1-0.4.0-alpha6+build.14.jar SHA-1 795d4c12bffdb1b21eed5ff87c07ce5ca3c0dcbf · Modrinth version 5JyduDNN · Project link unavailable Client only
supermartijn642configlib-1.1.8a-fabric-mc1.18.jar SHA-1 4d394521ecca8367f68da7ba9ee6e9d5de92d8b7 · Modrinth version YYWuaEEi · Project link unavailable Side not labelled

Pick your setup

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

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Looking for an older file? The official Modrinth project page is in Resources.