Psi
ModCreate magical spells by arranging actions in the world.
Why gradeA
How grades workStrengths
Points lost
All 11 criteria
Maintenance
1 point lost26 / 27Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.8 weeks ago (1 Sep 2026) 12 / 12Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.21.1 on NeoForge and Fabric, 1.20.1 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.21.1. Latest Minecraft: 26.3. 9 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 7 of the last 24 months 5 / 6Stability
Full points22 / 22Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.41 of the 382 modpacks with two or more versions removed it in a later one (11%) 10 / 10Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.No quick fix in 2 years 7 / 7Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5Transparency
Full points10 / 10Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · Vazkii/Psi 7 / 7Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · VazkiiMods/Psi 3 / 3Popularity
Full points4 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.53,467,870 4 / 4Track record
Full points8 / 8AgeHow long the project has existed. It counts less when no new file came out recently.10.7 years, 106 releases 8 / 8Security
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 4 latest files for recent Minecraft versions. See Security
70 of the 71 points that apply = 99 out of 100.
About
Psi is a magical-tech mod about programming spells, inspired by the series Mahouka. Players build spells as sequences of actions that execute in the world, using concepts such as vectors to shape what those spells can do. A leveling system guides progression with in-game documentation and tutorials covering the mod’s concepts and components. In-game sharing tools let players copy and share spells, including spells created by other players.
Written from Modrinth and the GitHub README . How we write it
In-game changes
Changes the game's code in 7 areas: Rendering and graphicsChanges 3 game code files in this area: drawing mobs, items, particles and textures on screen., PlayerChanges 2 game code files in this area: your character: movement, abilities, hunger and controls., Mobs and their behaviorChanges 2 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Game optionsChanges 1 game code file in this area: settings, key bindings and the option screens., Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting., Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules. and Other game codeChanges 1 game code file in this area: game code that is not in one of the areas above..
Adds 12 blocks, 71 items, 3 projectiles, 2 other entities, 99 recipes, 42 advancements and 9 sounds.
Counted from the names and data files in the mod, so the list may not be complete.
Keeps all of vanilla Minecraft's textures, models and sounds.
Often used with it
See all 30Details
- Creators
- Vazkii, Dudblockman and Kamefrede
- License
- Psi License
- Downloads
- 53.5M
- Created
- 11 Feb 2016
- Official pages
- Modrinth , CurseForge
- Links
- Source code , Issues , Discord
Security
No harmful code found
We checked its files and read their code, without running it.
What it can do on your computer
- Connects to the internet
- It has code that can go online, for example to check for updates, load skins or send crash reports. It contacts 3 web addresses. See Privacy
- Creates settings files
- The mod keeps its settings in the config folder of your game, where you can change or delete them. 2 files in your config folder.
- Contains programs or scripts
- The file contains programs or scripts. We do not run them. Only in its files for Forge 1.20.1 to 1.21.1.
Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.
How we checked
- FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.17 latest files: the newest file for each Minecraft version and loader. The answer above is about the 4 for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
- Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.Read without running it
- Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.Nothing declared about your system outside the game.
- Looked for, not foundWe looked for these in the file and did not find them.Folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.
Privacy
Sends unknown data
Sent to api.imgur.com.
We found this in its code, read without running it.
Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.The code of all 4 files, for recent Minecraft versions. See each file in Releases
- api.imgur.comPurpose not known.Unknown data
- raw.githubusercontent.comPurpose not known.Nothing about you
- Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.Nothing declared about crash reports, usage data or advertisements.
AI
No sign that AI was used to make it
We looked for AI tools in its texts, files, images, sounds and code history and found none.
No sign of AI in the game
We found no AI service, AI library or AI model file in its code.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.No AI content or AI features declared.
- Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.Nothing found
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found22 of 40 changelogs read
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Nothing found
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Nothing found321 images read
- Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.Nothing found9 sounds read
- Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.No AI service, AI library or AI model file758 code files read
Compatibility
See all 106 filesPoint at or tap a version to see its loaders.
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Find modpacks with it| Oct 2024 | 42 |
|---|---|
| Nov 2024 | 43 |
| Dec 2024 | 44 |
| Jan 2025 | 39 |
| Feb 2025 | 31 |
| Mar 2025 | 20 |
| Apr 2025 | 29 |
| May 2025 | 43 |
| Jun 2025 | 48 |
| Jul 2025 | 54 |
| Aug 2025 | 62 |
| Sep 2025 | 57 |
| Oct 2025 | 67 |
| Nov 2025 | 63 |
| Dec 2025 | 78 |
| Jan 2026 | 73 |
| Feb 2026 | 54 |
| Mar 2026 | 54 |
| Apr 2026 | 64 |
| May 2026 | 62 |
| Jun 2026 | 59 |
| Jul 2026 | 51 |
| Aug 2026 | 47 |
| Sep 2026 | 46 |
5,004 modpacks include Psi in at least one of their versions. Here are the 30 most downloaded.
All the Mods 9 - ATM913.7M downloadslast version with it 12 Oct 2025
FTB Presents SkyFactory 36.8M downloadslast version with it 10 Dec 2021
All the Mods 6 - ATM66.5M downloadslast version with it 24 Jan 2024
StoneBlock5M downloadslast version with it 11 Oct 2026
FTB Presents Stoneblock 24.4M downloadslast version with it 28 Oct 2019
Valhelsia 33.6M downloadslast version with it 21 Mar 2022
All the Mods 3 - ATM33.1M downloadslast version with it 20 Jan 2022
Farming Valley3.1M downloadslast version with it 7 Sep 2026
FTB StoneBlock 43M downloadslast version with it 21 Oct 2026
Valhelsia 22.8M downloadslast version with it 11 Dec 2021Often in the same modpacks
Mods that modpacks often add together with Psi. Share: how many of the modpacks with Psi also have that mod.
BotaniaAModin 75% of the modpacks with Psi
Immersive EngineeringCModin 75% of the modpacks with Psi
Thermal FoundationCModin 65% of the modpacks with Psi
Ender Storage 1.8.+CModin 65% of the modpacks with Psi
ChiselCModin 64% of the modpacks with Psi
Blood MagicAModin 63% of the modpacks with Psi
Thermal ExpansionCModin 63% of the modpacks with Psi
Chisels & Bits - For ForgeBModin 61% of the modpacks with Psi
Mekanism GeneratorsBModin 60% of the modpacks with Psi
MorpheusDModin 58% of the modpacks with PsiLatest files
The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.