Uranium is a modpack I'm developing to improve Minecraft's performance as much as I possibly can. Mostly developing for some of my friends who have issues with Minecraft's singleplayer performance. Some of them can't even hit 30 FPS in singleplayer, which is ridiculous.
⚙️ How Does Uranium Work?
Uranium works just the same as how Sodium works. It's a complete rewrite of the Minecraft rendering engine (well, Sodium is the rewrite, I'm just the pack dev) and the chunk engine(or whatever it is).
So you may be wondering, does this actually even work?
My answer is: It should.
I can't say for certain if it'll work for you or not. It should, as it rewrites Minecraft's rendering engine AND the chunk engine(?). But I'm hoping it does, as I practically made this modpack for one of my friends who struggles INSANELY with performance on singleplayer.
Uranium also comes with built-in shader support, as Iris is included.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as Uranium 0.1.0.mrpack
- Download size: 2 KB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.