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Psi Fabric Port (Unofficial)

Psi Fabric Port (Unofficial)

MOD
An unofficial Fabric 1.21.1 port of Vazkii's Psi, a spell-programming tech/magic mod.
by RegulusXV
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161 downloads
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Updated Oct 14, 2026
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Magic Technology
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Psi Fabric Port is an unofficial Fabric 1.21.1 port of Psi, the spell-programming tech/magic mod originally created by Vazkii.

This project is not an official VazkiiMods release and is not endorsed by Vazkii. Original Psi code, assets, concept, and documentation are credited to Vazkii and the Psi contributors. Fabric port work is credited to Icaro Manoel / RegulusXV.

Requires:

  • Fabric Loader
  • Fabric API
  • Patchouli

Optional:

  • JEI

Official Psi website: https://psi.vazkii.net/
Original source: https://github.com/VazkiiMods/Psi
Fabric port source: https://github.com/icaroman0el/PSI_port_fabric

Please report Fabric-port bugs on this port's issue tracker, not the official Psi tracker, unless the issue also happens on the official Forge/NeoForge version.

psi-1.21.1-109-fabric.jar
MC Client, Fabric, 1.21.1, Server
Beta 2026-05-26 Get
Psi Fabric Port 1.21.1-109
MC Client, Fabric, 1.21.1, Server
Beta 2026-05-18 Get
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