

What Is Opti-Basic Fabric?
This is a modpack that I made to prioritise optimisation. It has some basic optimisation mods and is made for people that just want performance without much want for shaders or a better look.
What's Inside
- Cloth Config API A config screen API
- Concurrent Chunk Management Engine A mod designed to improve the chunk performance of Minecraft
- Cull Leaves Culls leaf blocks
- Debugify Fixes some bugs on the Minecraft bug tracker
- Dynamic FPS Reduces resource usage while Minecraft is idle
- Enhanced Block Entities (v1.0.0-v1.0.10) Reduces FPS lag with block entities
- Entity Culling Skips rendering things that you can't see
- Fabric API A library with essential hooks for fabric mods
- Ferrite Core Reduces the memory usage of Minecraft
- Immediately Fast Speeds up immediate mode rendering
- Lithium No-compromises game logic/server optimization mod
- Modern Fix (v1.0.0-v1.0.10) and replaced with ModernFix-mVUS All-in-one mod that improves performance, reduces memory usage, and fixes many bugs
- More Culling Changes how multiple types of culling are handled
- Noxesium Improves client performance on large multiplayer servers
- Sodium A modern rendering engine for Minecraft
- Sodium Extra Adds some optimisation features that aren't in sodium
- Starlight (v1.0.0-v1.0.3) Rewrites the lighting engine to fix lighting performance and lighting errors
- Yet Another Config Lib A configuration library for Minecraft
Why Use Opti-Basic?
This mod is for performance. If you just want good performance with no shaders (but the option to add more later), then this mod is for you.
Reviews: This modpack is always progressing and it would be great if you could give some feedback! Please submit a ticket in the discord and give us feedback on anything we could do better in the future. All feedback is welcomed.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as Opti-Basic Fabric beta1.0.1 1.0.1.mrpack
- Download size: 12 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.