Citadel (Unofficial Port)
A Lightweight Library
About this Mod
About This Port:
This port updates Citadel to work with Minecraft 1.21.1 and the NeoForge mod loader. This is a community-maintained port and is not officially affiliated with the original Citadel developers.
Original Mod:
Citadel by AlexModGuy and contributors.
License:
This project is licensed under the GNU General Public License v3.0 (GPLv3), inheriting the license from the original Alex's Mobs mod.
Credits:
Original Mod Authors:
AlexModGuy (Lead Developer)
[Other original contributors]
Disclaimer:
This is an unofficial community port. All credit for the original mod design, artwork, models, and code goes to the original Citadel team. This port exists to make the mod available for newer Minecraft versions while we await an official update.
Support:
For issues specific to this 1.21.1 port, please report them to the github repo linked on this page.
Available Versions
How to Install Citadel (Unofficial Port) on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Citadel (Unofficial Port)". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Citadel (Unofficial Port) server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Citadel (Unofficial Port) compatible with neoforge?
Citadel (Unofficial Port) officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Citadel (Unofficial Port) – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Citadel (Unofficial Port) consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Similar Mods
Rent Modded Server
Install Citadel (Unofficial Port) with just one click on your server.