Project Catbus

Name: Project Catbus
Price: 12 EUR
Author: teajay

All aboard the Cat Bus! An eclectic, Aeronautics-themed modpack for Minecraft 1.21.1.

by teajay

12 Downloads

0 Followers

neoforgeMC 1.21.1adventuremagictechnology

Rent Project Catbus Server

About this Modpack

All aboard the Catbus!

Description

Welcome to Project Catbus: a modpack primarily centred around Create & Create: Aeronautics, including several other Create addons and a curated selection of other mods (more on that below). The primary focus is tech, but there's also magic, plenty of decorative blocks, and a few optimisation bits etc. to-boot.

Project Catbus is primarily intended for use on a private server - but you're welcome to join the fun!

Mod List

Also Includes...

As well as the above mods, Project Catbus also contains a couple extra bells and whistles...

A custom KubeJS script to balance the Sable weights of blocks from various mods.
A selection of Resource Packs, enabled by default: Re-Applied, Computercraft: Re-Created, and Create Style Sophisticated Backpacks.

Available Versions

Project Catbus 1.0.0release

MC 1.21.1neoforge12 downloads

May 19, 2026

How to Set Up a Project Catbus Server

Order Server

Choose at least 6 GB RAM (10 GB recommended for Project Catbus). Based on player count: per 4 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Project Catbus" and click "Install". The neoforge loader and Minecraft 1.21.1 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

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

Most common causes: insufficient RAM or wrong neoforge loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 10 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 Project Catbus server really need?

Minimum 6 GB, recommended 10 GB for stable performance. per 4 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 €12/month).

Can I add custom mods to Project Catbus without conflicts?

Yes, but check compatibility: only use mods for the same loader (neoforge) and same Minecraft version (1.21.1). 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.

Project Catbus server lagging – performance tips

1) Increase RAM to 10 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.