OptiMin

Minimal. Stable. Optimized.
A lightweight Fabric 1.20.1 modpack focused entirely on performance and clean gameplay.

🚀 What is OptiMin?

OptiMin is a carefully curated Fabric 1.20.1 optimization modpack designed to:

• Maximize FPS
• Reduce memory usage
• Improve chunk & entity rendering
• Lower CPU load
• Maintain vanilla gameplay feel
• Stay minimal and stable

This modpack does not add gameplay content.
It only improves performance, visuals, and user experience.

🎯 Target

• Low-end PCs
• Heavy multiplayer usage
• Large modded servers
• Players wanting smooth gameplay without gameplay changes

⚙️ Performance Stack

Rendering Optimizations

• Sodium – Complete rendering engine rewrite for massive FPS gains
• ImmediatelyFast – UI & HUD rendering optimizations
• More Culling – Advanced block face culling
• EntityCulling – Prevents rendering unseen entities
• FerriteCore – Memory usage reduction
• Lithium – Game logic optimizations (AI, physics, ticking)
• BadOptimizations – Micro-optimizations across systems

Background Resource Management

• Dynamic FPS – Reduces usage when game is unfocused
• FPS Reducer – Smart frame limiting when idle
• ServerCore – Server-side performance improvements

Visual & UX Enhancements (Lightweight)

• 3D Skin Layers
• Chat Heads
• Chat Animation
• Jade (block/entity tooltips)
• JourneyMap
• JEI
• OptiGUI
• Simple Voice Chat
• Essential

Core Dependencies

• Fabric API
• Fabric Language Kotlin
• Cloth Config
• Mod Menu
• Crash Assistant

📦 Included Mods

- 3d\-Skin\-Layers [1\.10\.2] by tr7zw (skinlayers3d\-fabric\-1\.10\.2\-mc1\.20\.1\.jar)
- BadOptimizations [2\.4\.1] by Thosea (BadOptimizations\-2\.4\.1\-1\.20\.1\.jar)
- Chat Heads [0\.15\.0] by dzwdz, Fourmisain (chat\_heads\-0\.15\.0\-fabric\-1\.20\.jar)
- ChatAnimation [1\.1\.3] by Ezzenix (chatanimation\-fabric\-1\.20\.1\-1\.1\.3\.jar)
- Cloth Config v11 [11\.1\.136] by shedaniel (cloth\-config\-11\.1\.136\-fabric\.jar)
- Crash Assistant [1\.10\.30] by KostromDan (CrashAssistant\-fabric\-1\.19\-1\.21\.4\-1\.10\.30\.jar)
- Dynamic FPS [3\.11\.4] by juliand665, LostLuma (dynamic\-fps\-3\.11\.4\+minecraft\-1\.20\.0\-fabric\.jar)
- EntityCulling [1\.9\.5] by tr7zw (entityculling\-fabric\-1\.9\.5\-mc1\.20\.1\.jar)
- FPS Reducer [1\.20\-2\.5] by bre2el (FpsReducer2\-fabric\-1\.20\-2\.5\.jar)
- Fabric API [0\.92\.7\+1\.20\.1] by FabricMC (fabric\-api\-0\.92\.7\+1\.20\.1\.jar)
- Fabric Language Kotlin [1\.13\.9\+kotlin\.2\.3\.10] by FabricMC (fabric\-language\-kotlin\-1\.13\.9\+kotlin\.2\.3\.10\.jar)
- FerriteCore [6\.0\.1] by malte0811 (ferritecore\-6\.0\.1\-fabric\.jar)
- ImmediatelyFast [1\.5\.4\+1\.20\.4] by RK\_01 (ImmediatelyFast\-Fabric\-1\.5\.4\+1\.20\.4\.jar)
- Jade [11\.13\.1\+fabric] by Snownee (Jade\-1\.20\-Fabric\-11\.13\.1\.jar)
- Journeymap [5\.10\.3] by Mysticdrew, Techbrew (journeymap\-1\.20\.1\-5\.10\.3\-fabric\.jar)
- Just Enough Items [15\.20\.0\.129] by mezz (jei\-1\.20\.1\-fabric\-15\.20\.0\.129\.jar)
- Lithium [0\.11\.4] by JellySquid, 2No2Name (lithium\-fabric\-mc1\.20\.1\-0\.11\.4\.jar)
- Mod Menu [7\.2\.2] by Prospector, haykam821, TerraformersMC (modmenu\-7\.2\.2\.jar)
- More Culling [1\.20\.1\-0\.24\.5] by FX \- PR0CESS (moreculling\-1\.20\.1\-0\.24\.5\.jar)
- OptiGUI [2\.3\.0\-beta\.9\+1\.20] by opekope2 (optigui\-2\.3\.0\-beta\.9\+1\.20\.jar)
- ServerCore [1\.5\.2\+1\.20\.1] by Wesley1808 (servercore\-fabric\-1\.5\.2\+1\.20\.1\.jar)
- Simple Voice Chat [1\.20\.1\-2\.6\.12] by Max Henkel (voicechat\-fabric\-1\.20\.1\-2\.6\.12\.jar)
- Sodium [0\.5\.13\+mc1\.20\.1] by JellySquid \(jellysquid3\) (sodium\-fabric\-0\.5\.13\+mc1\.20\.1\.jar)
- essential\-container [1\.0\.0] (Essential\_1\-3\-10\-6\_fabric\_1\-20\-1\.jar)

🧠 Why Fabric?

Fabric was chosen because it:

• Is lightweight
• Loads faster than Forge/NeoForge
• Has lower overhead
• Provides the best optimization ecosystem (Sodium + Lithium + FerriteCore stack)

This ensures maximum compatibility and minimum performance impact.

💻 Recommended Settings

For best performance:

• Use 6–8GB RAM maximum (more is not always better)
• Enable VSync OFF
• Use fullscreen mode
• Reduce simulation distance if CPU bound
• Let Sodium handle advanced rendering settings

🔌 Server Compatibility

OptiMin is fully compatible with:

• Vanilla servers
• Fabric servers
• Most NeoForge/Forge servers (client-side mods only)

ServerCore improves performance when installed server-side.

🛠 Installation

1. Install .mrpack or .zip
2. Launch the game

🐞 Issues & Support

If you encounter crashes:

• Check the Crash Assistant report
• Verify mod version compatibility
• Avoid adding unknown optimization mods that conflict with Sodium

📜 License

This modpack includes mods developed by their respective authors.
All credits belong to the original creators.

Built for performance.