Ars Nouveau Mod for Minecraft 1.21.1, 1.21
Craft spells and construct magical automations
- downloads
- 18 downloads
- views
- 89 views
- likes
- 1 likes
- Updated
- Updated 04.10.2026
- 1.21 — 1.21.1
NeoForge- Client and server
About the Ars Nouveau mod
Ars Nouveau is a magic mod inspired by Ars Magicka that allows players to craft their own spells, create magical artifacts, perform rituals, and much more. Documentation is provided entirely in-game by Patchouli. To get started with this mod, craft the Worn Notebook using a book and 1 Lapis Lazuli. You can also consult the wiki below.
https://www.arsnouveau.wiki/
Introduces custom spell crafting - build a spell to fit your needs, anywhere! Craft powerful new baubles and trinkets. Power magical machines. Automate your base with adorable magical servants!
How to install Ars Nouveau
With Millida Launcher
Install Millida Launcher
The launcher is free: download it at millida.net/launcher and sign in with any nickname.
Click “Install” on this page
The launcher opens and installs the mod for Minecraft 1.21–1.21.1 on NeoForge automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.
Manually
Install NeoForge
The loader must match the game version of the mod file, for example Minecraft 1.21.1. After installing it, a separate profile appears in your launcher.
Download the file for your version
In the version list above, pick the file ars_nouveau-1.21.1-5.13.3.jar (19 MB) for your game version.
Put it in the mods folder
The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.
Launch the loader profile
Open “Mods” in the main menu: Ars Nouveau should be in the list.
On a server
A server on NeoForge
The mod only works on a server with the same loader and game version, for example 1.21.1.
File goes into the server’s mods folder
Stop the server, put the mod file into the mods folder and start the server again.
Use the “To server” button
On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.
Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.
Versions
With dependencies
| Minecraft | Loader | File | Date | Actions |
|---|---|---|---|---|
| 1.21.1 | NeoForge | 1.21.118.9 MB 18 | ||
| 1.21.1 | NeoForge | 1.21.118.9 MB | ||
| 1.21.1 | NeoForge | 1.21.119.2 MB | ||
| 1.21.1 | NeoForge | 1.21.119.2 MB | ||
| 1.21.1 | NeoForge | 1.21.119.8 MB | ||
| 1.21.1 | NeoForge | 1.21.119.8 MB | ||
| 1.21.1 | NeoForge | 1.21.119.7 MB | ||
| 1.21.1 | NeoForge | 1.21.119.7 MB |
FAQ
Which Minecraft versions does Ars Nouveau work on?
There are files for 1.21.1, 1.21. The newest is 1.21.1.
Is Ars Nouveau for Forge or Fabric?
Only for NeoForge: 1.21–1.21.1. There are no files for Forge or Fabric: a mod for another loader will not start.
Does Ars Nouveau need other mods?
The author lists no required dependencies: the NeoForge loader is enough.
Does Ars Nouveau work on a server?
Yes. Ars Nouveau works both in singleplayer and on a server.
Which Java does Ars Nouveau need?
Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.
Where can I download Ars Nouveau safely?
On this page: the file ars_nouveau-1.21.1-5.13.3.jar (19 MB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 541b3286d187deeb9a1297a509d0d3539d8af0f6.
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