Apprentice's Codex

Apprentice's Codex

An addon for Iron's Spells and Spellbooks that adds some apprentice's magic contents.

by
12.7K Downloads
forgeneoforgeequipmentmagic
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Screenshots

Glass Cannon Mage Loadout
Items
Spell Dispenser
Create Support
Force Field Sample
Commence Fire Sample

About this Mod

Apprentice's Codex Title

Sky Edge Sample GIF Movie

A lightweight add-on for Iron's Spells 'n Spellbooks focused on side-grade magic: new spells, spellcasting weapons, curios, spellbooks, and utility blocks.

It does not add new mobs, spell schools, ores, biomes, or mandatory progression. Existing worlds can use the content without restarting, while newly generated villages may include a new profession villager.


Contents

The following content is currently included.

Spells (Around 50 spells)

Including:

  • Combat spells: summoned blades, spears, rifles, shotguns, muskets, and other magical weapons.
  • Defensive and support spells: barriers, guard stances, traps, healing blooms, and mana recovery.
  • Exploration and utility spells: magical lights, personal storage, remote vision, structure search, pet storage, and treasure sensing.
  • Gathering and crafting spells: tree cutting, terrain shaping, crop harvesting, smelting-style processing, and item collection.

Items

Items include:

  • Spellcasting gear: Spellcaster Guns, Swingcast Staves, Offhand Spell Amplifiers, and other spell-triggering equipment.
  • Specialized magic weapons: Smashcast Scepter, Focus Staffbow, Multipurpose Staffrifle, Reflectcast Shield, Mana Force Blade, and more.
  • Spellbooks and curios: Ender Grimoire, Archivist's Grimoire, Spell-stained Runic Tablet, mana/defense accessories, and utility curios.
  • Mage armor sets: glass-cannon robes and school-agnostic caster gear for players who want more spell power at a real defensive cost.
  • Utility blocks: Spellcaster Workbench, Spell Dispenser, Atelier Station, and other support blocks.

Spell Dispenser can cast supported scroll spells with redstone, mana potion fuel, and optional Create contraption support.

Datapack Customization

This mod supports customization via datapacks.

You can add or modify several behavior definitions, such as spell-related profiles, deny lists, recipe-like data, and other configurable gameplay data.

Because the available options have grown large, detailed documentation has been moved to the GitHub Wiki.

See the datapack documentation here: https://github.com/hexqua/apprentice_codex/wiki

The documentation is currently written in Japanese.
If needed, please use your browser's translation feature.

Note:

  • Datapack formats may change between mod versions.
  • Please check the documentation page matching your mod version.
  • In-game descriptions, tooltips, and JEI integration may not cover every datapack option.

License & Use

This project is licensed under MIT and CC0-1.0; however, third-party content may be licensed differently. For details, please refer to the GitHub repository.

Permissions

  • Free to use in modpacks.
  • Free to create resource packs and data packs.
  • Free to take screenshots and create videos.

Support Policy

For bug reports and support requests, please use GitHub Issues with logs, Minecraft/mod version, and mod list. CurseForge comments may not be checked regularly.

  • Official downloads are provided only via CurseForge or Modrinth.
  • I do not provide support for builds obtained from other sources (reuploads, mirrors, etc.).
  • If you encounter an issue, please reproduce it using an official file and include the version number and logs.
  • Unofficial reuploads may be outdated or tampered with. Use them at your own risk.
  • If you run into a bug, please report it on GitHub Issues when possible, with logs/mod list included.

Note

  • This is my first mod, so some parts may be rough.
  • The author is Japanese, so some English wording may be awkward or imperfect.

Available Versions

1.21.1 : 0.9.4.1beta
MC 1.21.1neoforge
June 15, 2026
1.20.1 : 0.9.4.1beta
MC 1.20.1forge
June 15, 2026
1.21.1 : 0.9.4beta
MC 1.21.1neoforge
June 14, 2026
1.20.1 : 0.9.4beta
MC 1.20.1forge
June 14, 2026
1.20.1 - 0.9.3beta
MC 1.20.1forge
May 24, 2026

How to Install Apprentice's Codex on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Apprentice's Codex". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.1, 1.20.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Apprentice's Codex server crashes on startup – what to do?

Most common cause: wrong forge 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 (1.21.1). You can switch loaders with one click in the panel.

Is Apprentice's Codex compatible with forge and neoforge?

Apprentice's Codex officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Apprentice's Codex – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Apprentice's Codex 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.

Rent Modded Server

Install Apprentice's Codex with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.11.20.1