Psi
Modby Vazkii
Psi is a mod about spell programming, inspired by Mahouka
Type
Mod
CurseForge Downloads
51,585,623
CurseForge ID
241665
Last Updated
Apr 13, 2026
Description
About
Warning: Psi Requires Patchouli for 1.16.5 and more recent versions. Older versions require AutoRegLib
Psi is a magical tech spell programming mod inspired by Mahouka Kokou no Rettousei. Don't worry if that doesn't make any sense.
The core of Psi is a system where you can create action sequences ("Spells") to be executed in the world. This system is followed by a leveling system containing ingame documentation and tutorials of the various concepts and pieces you'll get. The mod makes use of basic mathematical concepts, such as Vectors in its systems, which allows for great flexibility on what spells can do.
Psi spells can be shared and copied to and from outside sources, using ingame sharing tools. The main repository for user made psi spells is the Psi Spell Compendium on reddit.
Psi...
- Is very flexible on what it allows you to do;
- Encourages creativity and problem solving;
- Ties in the reward to the creation process;
- Can do some pretty cool stuff.
Learn more about Psi today
Visit the Official Website
Similar Mods
Bookshelf
An open source library for other mods!
Fabric API
Core API library for the Fabric toolchain
Nature's Compass
Nature's Compass is an item that allows you to locate biomes anywhere in the world.
Sodium
The fastest and most compatible rendering optimization mod for Minecraft. Now available for both NeoForge and Fabric!
Moonlight Lib
Forge and Fabric lightweight library with utilities such as custom Villagers AI, data driven trades, global datapack, cu...
Konkrete
Just another boring library mod.







