OptiCloth

Name: OptiCloth
Price: 8 EUR
Author: ZenChiuGaming

Inspired by Fabulously Optimized.

by ZenChiuGaming

61 Downloads

0 Followers

fabricMC 1.21.11optimization

Rent OptiCloth Server

About this Modpack

Overview

OptiCloth is a Optimization + QoL Modpack for fabric that is inspired by Fabulously Optimized (https://modrinth.com/modpack/fabulously-optimized) but not built on it. My favourite mods in this modpack are Sodium, BactroMod, MiniHUD (Check the other mods in the verisons tab).

OptiFine Compatibility

There are OptiFine features are in this modpack (cuz it's called opticloth). Most mods that require OptiFine should work using this modpack (OptiFine features replaced with individual mods).

Usage

These are pruely client-side mods so you can use them on any fabric/vanilla servers

Will links come?

If this gets 50 downloads I will update this more and add a wiki, discord link, download tutorial and bug report website.

Available Versions

OptiCloth 1.0.0release

MC 1.21.11fabric61 downloads

February 26, 2026

How to Set Up a OptiCloth Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for OptiCloth). Based on player count: per 8 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "OptiCloth" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

OptiCloth server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a OptiCloth server really need?

Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).

Can I add custom mods to OptiCloth without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

OptiCloth server lagging – performance tips

1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.