
Modrinth · Minecraft modpack
Optim
Optim is a Fabric modpack that aims to provide maximum performance with some common quality-of-life modifications to the game.
Quick answer
Which Optim release should I use?
v1.15.0 is a complete pack release for 26.2 with Fabric 0.19.3. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 68 mods in this pack file.
Pack setup
How should I set up Optim for players and a server?
Use v1.15.0 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.
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.
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 Optim?
v1.15.0. Change the pack release and its contents or setup may change too.
The selected pack release is v1.15.0. That file is for Minecraft 26.2 with Fabric 0.19.3. It contains 68 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 Optim?

Optim
Optim is a Fabric modpack that aims to provide maximum performance with some common quality-of-life modifications to the game. It is a highly opinionated selection of mods I intentionally handpicked to share my improved experience with the wider Minecraft community.
🌟 Features
Main Features
- Vanilla Parity - Doesn't add any new content to the game as it aims to be compatible with all Vanilla servers.
- Optifine Parity - Replacements for most Optifine features like Shaders, CEM, CIT, Animated & Connected Textures, Capes, Dynamic Lighting and Custom Sky Boxes.
- Regularly Updated - Actively maintained and updated to newer Minecraft versions.
- Optimized - Strives to provide the best possible performance while still having all the bells and whistles.
Other Features
- Replay Mod - The best way to record and capture replays.
- Roughly Enough Items - The go-to mod for browsing receipes.
- Auth Me - Has your client been launched for too long? Use the authenticate button in the server list. No need to restart.
- Improved Third Person - Minecraft's third-person mode is old and clunky, the new one allows you to turn the camera without turning your character.
- 3D-Skin-Layers - Makes skins look fabolous by improving rendering of the 3D layer.
- Wavey Capes - Capes now blow beautifully in the wind.
Stable releases can be downloaded from the platforms linked above.
🤝 Bugs & Feature Requests
If you happen to find any bugs or wish to request a feature, please open an issue on our issue tracker here. We provide bug report and feature request templates, so it is important that you fill out all the necessary information.
Making your issue easy to read and follow will usually result in it being handled faster. Failure to provide the requested information in an issue may result in it being closed.
🔧 Contributing
Contributions are always welcome! Please make sure to read our Contributor's Guide before submitting any pull requests.
We also ask that you adhere to our Contributor Code of Conduct to ensure this community remains a place where all feel welcome to participate.
❤️ Acknowledgments
Optim was created because I grew tired of manually updating my personal selection of mods after every Minecraft update.
The following projects inspired, influenced and or helped me greatly when creating Optim:
- mc-modpack-kit - Used to scaffold this GitHub repository.
- Packwiz - Exceptional software making modpack maintenance and creation easy.
- Kami Chan Optimized - Inspired a few additions like fast-up-ping and Server Pinger Fixer.
📝 License
You can find the license this project is licensed under here. All mods & content are licensed under their respective authors' license.
Project description from Modrinth.
Mods in v1.15.0
Open any mod on Modpacks.ch to check its files and dependencies.
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Optim by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build1.21.11
1 loader build1.21.8
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.4
1 loader build1.20.2
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
Optim versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.