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Ars OcultasMinecraft mod for 1.21.1

Ars Nouveau Integration for Occultism

client and servernewest supported release 1.21.1UtilityAdventureMobsGame Mechanics
Latest version
1.21.1-2.6.2
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LGPL-3.0-only
Downloads
427.8k
Updated
6 d ago
Available on
Modrinth
Space NodeOur hosting

Host Ars Ocultas servers

One click and Ars Ocultas is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Ars Ocultas declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022

Download

From Ars Ocultas’s own host. Nothing is re-hosted here.

Most recently published release

1.21.1-2.6.2release24 Oct 2026

ars_ocultas-1.21.1-2.6.2.jar · 81 KB · for 1.21.1 · NeoForge

Download this release
4a673096a2d0…
Older versions20
  • 1.21.1-2.6.16 Aug 20261.21.183 KB89cd67402f37…Get
  • 1.21.1-2.6.06 Aug 20261.21.183 KBf8472c6df5eb…Get
  • 1.21.1-2.5.026 Jul 20261.21.177 KB992 downloads8ff914e59c8d…Get
  • 1.21.1-2.4.128 Apr 20261.21.177 KB20.8k downloads1d450b7c6e19…Get
  • 1.21.1-2.4.028 Feb 20261.21.177 KB12.9k downloads438473a0d638…Get
  • 1.21.1-2.3.128 Feb 20261.21.171 KB199 downloads271910b51570…Get
  • 1.21.1-2.3.026 Feb 20261.21.173 KB316 downloadsd6d04325aceb…Get
  • 1.21.1-2.2.17 Feb 20261.21.173 KB5.7k downloadsef7c6d57e959…Get
  • 1.21.1-2.2.02 Aug 20251.21.171 KB60.7k downloads0b25ab1e8561…Get
  • 1.21.1-2.1.023 Dec 20241.21.154 KB17.2k downloads7cfd4a9a11e6…Get
  • 1.21.0-2.0.124 Jul 20241.2152 KB8.2k downloadsb23ed178cf89…Get
  • 1.21.0-2.0.022 Jul 20241.2152 KB106 downloads8d08cc937127…Get
  • 1.20.1-1.2.210 Mar 20241.20.10.2 MB184.9k downloads7930d235da87…Get
  • 1.20.1-1.2.124 Jan 20241.20.10.2 MB26.0k downloadse166610b245a…Get
  • 1.20.1-1.2.024 Jan 20241.20.10.2 MB133 downloads87c9666c8172…Get
  • 1.20.1-1.1.012 Oct 20231.20.10.2 MB17.4k downloads1ad58fae0c80…Get
  • 1.19.2-0.1.12 Sept 20231.19.20.2 MB11.8k downloads4e979830d070…Get
  • 1.0.12 Sept 20231.20.10.2 MB2.8k downloads35f78e3b9cfd…Get
  • 1.20.1-1.0.029 Aug 20231.20.10.2 MB5.5k downloads97d087085c27…Get
  • 1.19.2-0.1.029 Aug 20231.19.20.2 MB202 downloads763be8eef0c4…Get

Dependencies

What Ars Ocultasdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Ars NouveauRequired. Craft spells and construct magical automationsOccultismRequired. A ritual magic system centered around summonable spirits allows you to automate various tasks, store vast amounts of items, let demons mine in void dimensions, create powerful enchanted tools and jewelry, get support from familiars, and much much more.

Frequently asked

Does Ars Ocultas work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Ars Ocultas 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 Ars Ocultas support?

Everything the author has declared, from 1.19.2 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 Ars Ocultas 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 Ars Ocultas support?

Forge, NeoForge. 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 Ars Ocultas?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What does Ars Ocultas need to run?

It declares Ars Nouveau and Occultism as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Ars Ocultas under?

LGPL-3.0-only, 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 Ars Ocultas?

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 Ars Ocultas 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 24 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .