ModsJava
PsiTweaker
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
A Psi addon that makes some things configurable
Makes psi capacity, regeneration rate, regeneration cooldown after casting and taking damage, psi lost from damage, overflow damage and spell bullet cost multipliers configurable with expressions. See the readme for more information on configuration options.
Without configuration changes, this mod does not alter anything by default.
This mod should be installed on both client and server with matching configurations.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 1.20.2, 1.20.3
- 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.
Verified by MCModsHub
- Ships as psitweaker-1.20-1.0.1.jar — drop this file into the mods folder
- Download size: 188 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.