Opti-Basic Fabric

Opti-Basic Fabric

A basic optimisation modpack for Fabric. [1.20.1-1.21.11]

by raffasuperninja
1.0K Downloads
0 Followers
fabricMC 1.21.11lightweightmultiplayeroptimization

Screenshots

Example Of Potential FPS

About this Modpack

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

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.

Available Versions

Opti-Basic Fabric 1.0.16release
MC 1.21.10fabric19 downloads
December 26, 2025
Opti-Basic Fabric 1.0.15release
MC 1.21.9fabric6 downloads
December 26, 2025
Opti-Basic Fabric 1.0.14release
MC 1.21.8fabric11 downloads
December 26, 2025
Opti-Basic Fabric 1.0.13release
MC 1.21.7fabric4 downloads
December 26, 2025
Opti-Basic Fabric 1.0.12release
MC 1.21.6fabric9 downloads
December 26, 2025

How to Set Up a Opti-Basic Fabric Server

1

Order Server

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

2

Install Modpack in Dashboard

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

3

Start Server & Play

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

Frequently Asked Questions

Opti-Basic Fabric 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 Opti-Basic Fabric 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 Opti-Basic Fabric 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.

Opti-Basic Fabric 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.

Rent Opti-Basic Fabric Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 8.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
MIT License
Server-side
Optional
Client-side
Optional

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+8 more

Start your Opti-Basic Fabric Server now

From €8.00/month with 6 GB RAM for the best performance.

Configure Server →