FirmaSupplementaries

FirmaSupplementaries

A compatibility addon for Supplementaries and TerraFirmaCraft

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4.1K Downloads
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About this Mod

This mod aims to provide compatibility between Supplementaries by the Supplementaries Dev Team and the total conversion mod TerraFirmaCraft (TFC) by the TFC Dev Team. As an addon, it requires both Supplementaries and TFC to work.

The changes done for compatibility are extensive, but to name a few important things:

  • Recipes adjusted for items obtainable in TFC
  • Light sources burn out like in TFC. Now you can use candle holders, sconces, and fire pits as balanced light sources!
  • Sacks now act more like large vessels, but they can be used to also transport large items
  • Pancakes, Candy, and Goblets work with TFC. Nutrition, expiration dates, all working (even with pancakes placed down as blocks!)
  • Gunpowder trails can light up TFC blocks, everything from powderkegs to blast furnaces and firepits

A more extensive list of changes, including details like config settings can be found on the github README.txt file.
If you have any issues, please report them on github!

Available Versions

FirmaSupplementaries 2.1.1release
MC 1.21.1neoforge
December 7, 2025
FirmaSupplementaries 1.3.1release
MC 1.20.1forge, neoforge
December 5, 2025
FirmaSupplementaries 1.3.0release
MC 1.20.1forge, neoforge
November 25, 2025
FirmaSupplementaries 2.1.0release
MC 1.21.1neoforge
November 25, 2025
FirmaSupplementaries 2.0.3release
MC 1.21.1neoforge
November 14, 2025

How to Install FirmaSupplementaries on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "FirmaSupplementaries". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.1, 1.20.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

FirmaSupplementaries server crashes on startup – what to do?

Most common cause: wrong forge 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 FirmaSupplementaries compatible with forge and neoforge?

FirmaSupplementaries officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with FirmaSupplementaries – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if FirmaSupplementaries 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.

Rent Modded Server

Install FirmaSupplementaries with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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Details

License
MIT License
Server-side
Required

Supported Versions

1.21.11.20.1