
Arcanus: Legacy
Arcanus: Legacy is a small magic mod with a magic system inspired by Wynncraft and EB Wizardry
About this Mod
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Arcanus: Legacy is being discontinued
There's a new version that I've decided is going to be the version going forward. It was originally a separate project so people could still have old school Arcanus, but I don't have any interest in maintaining it.
You can find the new Arcanus here.
---Arcanus is a small mod with a magic system inspired by Wynncraft and Electroblob's Wizardry, along with new trinkets, structures, and threats sometime SoonTM in future updates.
Quick Start Guide [Click here!]
Wand Recipe:

List of Spells:
- Lunge
- Dream Warp
- Magic Missile
- Telekinetic Shock
- Heal
- Discombobulate
- Solar Strike
- Arcane Barrier
Learning Spells:
In order to learn Spells, you need to find Spell Books. These can be found in Village Libraries, Stronghold Libraries, and Ruined Portal chests. When you read a Spell Book, you will learn how to cast a spell.
Spell Books contain the Pattern that defines a given Spell.
Spell Casting:
Casting Spells requires that you know a given Spell. All you have to do is have a Wand in your main hand, and use the Left and Right Mouse Buttons to create the Pattern of a Spell.
Mana Flasks:
Mana Flasks are a way for Mages to store Mana for later. In order to fill a Mana Flask, all you have to do is Sneak + hold Right Click, while having at least 5 Mana available.
Display Case:
Display Cases are decorative blocks that can hold any item. To open or close them, all you have to do is Shift + Right Click them, and to place an item in them all you have to do is Right Click it while it's open with the item you wish to place inside.
Display Cases also are able to emit a Comparator output depending on whether they're open or closed.
You can use /spells list at any time to see all the spells, as well as their patterns, that you know.
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Available Versions
How to Install Arcanus: Legacy on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Arcanus: Legacy". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.19.4, 1.19.3 (+8 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Arcanus: Legacy server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is Arcanus: Legacy compatible with fabric and quilt?
Arcanus: Legacy officially supports fabric, quilt for Minecraft 1.20.1, 1.19.4, 1.19.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Arcanus: Legacy – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Arcanus: Legacy consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Arcanus: Legacy with just one click on your server.

