OBL modpack

OBL modpack

A modpack designed specifically for Xbox Series S/X users that adds performance optimization mods along with a selection of quality of life improvements.

by rvrb
9 Downloads
0 Followers
fabricMC 1.21.11optimization

About this Modpack

⚠️ IMPORTANT

Make sure Bandit Controller Support is disabled before launching the game.

This modpack uses Controlify for native controller support. Leaving Bandit Controller Support enabled may cause controller issues.


OBL Modpack

OBL is a lightweight modpack built specifically for Xbox Series S/X running Minecraft Java through the UWP environment.

It focuses on maximizing performance while keeping the vanilla Minecraft experience, with carefully selected quality of life improvements.

Features

Performance

  • Optimized for higher FPS
  • Improved stability
  • Configured specifically for Xbox Series S/X

Quality of Life

  • Controlify for native controller support
  • AppleSkin for hunger and saturation information
  • Zoomify (recommended to bind to B)
  • FallingTree
  • Gamma Utils
  • Catharsis
  • Dark Loading Screen

Included Resource Packs

  • Dark Mode UI
  • Hypixel SkyBlock Resource Pack

Why use OBL?

OBL is based on Fabulously Optimized, but it has been modified for the Xbox UWP environment.

Several incompatible mods have been removed or replaced to provide a smoother experience on Xbox Series S/X.

Everything is already configured, so you can install the modpack and start playing without manually searching for compatible mods.

Disclaimer

This project is a fork of Fabulously Optimized.

It has been modified specifically for the Xbox Series S/X UWP environment. Full credit for the original modpack belongs to the Fabulously Optimized team.

Available Versions

Bandit Launcher Optimizer 1.0.0release
MC 1.21.11fabric9 downloads
June 27, 2026

How to Set Up a OBL modpack Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "OBL modpack" 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

OBL modpack 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 OBL modpack 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 €5.2/month).

Can I add custom mods to OBL modpack 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.

OBL modpack 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 OBL modpack Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 5.20 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
Creative Commons Zero v1.0 Universal
Server-side
Optional
Client-side
Optional

Supported Versions

1.21.11

Start your OBL modpack Server now

From €5.20/month; 6 GB RAM is recommended for best performance.

Configure Server →