Imπrium
Java mod listed for Minecraft 1.18–1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.18–1.20.4 on Fabric. On other versions it may install and then do nothing.
Set π to any value, globally.
If you wish to use this mod I strongly recommend using a third party launcher that has better support for customization such as Prism as this mod REQUIRES a JDK, if you attempt to use this mod with a JRE you will crash.
Usage:
/setpi [value] # sets the current value of pi anywhere that it can be found
/setpiclient [value] # same as above but when on servers
/getpi # gets the value of pi
/getpiclient [value] # same as above but when on servers
Warning! Servers' anticheat may ban you as your movements will be sporadic
Why the name Imπrium?
Imperium is Latin for control, this mod allows you to control π, so Imπrium
Is this mod compatible with X?
Probably, this should only affect mods that directly target literal π constants.
If some mod does crash while you have Imπrium installed, remove Imπrium, it is very invasive.
How Does This Work?
In simple terms, every time some code is loaded into the game it scans everything in that code for literal representations of π, half π, quarter π, 2x π (aka Tau), negative π, etc. It replaces it with a reference that can be set via /setpi, allowing you to change the value of π everywhere, including in other mods.
Yes, this is invasive, and yes this may break other mods, no there is no other way to do this.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19.3, 1.20.2, 1.18.1
- 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 CurseForge — 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.
- Ships as impirium-1.0.1.jar — drop this file into the mods folder
- Download size: 388 KB
- Download link checked 17 Oct 2026 — working
These come from our own check of the pack file, not from the source page.