mod
PsiMinecraft mod for 1.21.1
Psi is a mod about spell programming, inspired by Mahouka
- Latest version
- 1.21.1-108
- Minecraft
- 1.12.2 to 1.21.1
- Java
- Java 21+
- Loaders
- NeoForge, Forge
- Licence
- LicenseRef-Psi-License
- Downloads
- 82.9k
- Updated
- 18 d ago
- Available on
- Modrinth
Our hostingHost Psi servers
One click and Psi is installed with the right loader, on hardware built for it.
- 1.21.1
- NeoForge
- Forge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Minecraft versions
Every version Psi declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.1 | NeoForge, Forge | 21+ | declared | 8 Aug 2024 |
| 1.20.1 | NeoForge, Forge | 17+ | declared | 12 Jun 2023 |
| 1.19.4 | Forge, NeoForge | 17+ | declared | 14 Mar 2023 |
| 1.19.3 | Forge, NeoForge | 17+ | declared | 7 Dec 2022 |
| 1.19.2 | Forge, NeoForge | 17+ | declared | 5 Aug 2022 |
| 1.18.2 | Forge, NeoForge | 17+ | declared | 28 Feb 2022 |
| 1.16.5 | NeoForge, Forge | 8+ | declared | 14 Jan 2021 |
| 1.12.2 | Forge, NeoForge | 8+ | declared | 18 Sept 2017 |
Download
From Psi’s own host. Nothing is re-hosted here.
Psi-1.21.1-108.jar · 2.3 MB · for 1.21.1
fb0fb0494c77…Older versions11Hide older versions
- 1.21.1-1077 Dec 20251.21.12.2 MB6.4k downloads
289bfc166f43…Get - 1.21.1-10526 Jul 20251.21.12.2 MB10.8k downloads
e6e256fae067…Get - 1.21.1-10430 Jun 20251.21.12.1 MB578 downloads
333e06831223…Get - 1.21.1-10329 Jun 20251.21.12.1 MB580 downloads
828466dab391…Get - 1.20.1-1.20.1-10227 Apr 20251.20.12.1 MB25.5k downloads
62e478379389…Get - 1.19-10112 Dec 20231.19.2, 1.19.3, 1.19.42.1 MB4.0k downloads
b1e26b8f2c07…Get - 1.19-999 Dec 20231.19.2, 1.19.3, 1.19.42.1 MB559 downloads
807201f0ffe7…Get - 1.18.2-987 Apr 20231.18.22.1 MB7.6k downloads
45032a735497…Get - 1.16-97.4747 Apr 20231.16.52.1 MB3.0k downloads
0de8e024778f…Get - r1.1-78.218 Nov 20221.12.21.7 MB7.2k downloads
9bd689a178f6…Get - 1.16-9730 May 20221.16.52.1 MB863 downloads
eade8b41de5e…Get
Frequently asked
Does Psi work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Psi declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Psi support?
Everything the author has declared, from 1.12.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Psi on the client or the server?
Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.
Which platform or loader does Psi support?
NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Psi?
On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.
What licence is Psi under?
LicenseRef-Psi-License, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Psi?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Psi safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .