
Radium
Radium is an Unofficial Fork of CaffeineMC's "Lithium", made to work with Forge Mod Loader.
About this Mod
What is Radium?
An unofficial fork of Lithium by CaffeineMC, on Forge
Canary
Canary basically just disables some important Lithium optimizations, besides Canary is a hardfork and upgrading to upstream is slow, we act differently.
Modpack Permissions
This is a free and open-source project; you can include it in your mod pack as long as you provide attribution!
Common Questions
- For any other questions, please contact our discord!
Available Versions
How to Install Radium on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Radium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.6, 1.20.5 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Radium 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 Radium compatible with forge and neoforge?
Radium officially supports forge, neoforge for Minecraft 1.21.1, 1.20.6, 1.20.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Radium – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Radium 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 Radium with just one click on your server.