Forbidden Library
by Yumetztli
Forbidden Library is a set of enchantments for weapons, tools, shields and projectiles, shipped as a datapack and a Fabric, Forge and NeoForge mod.
What it does
Forbidden Library adds custom enchantments to the enchanting table, and some curse effects are available there directly. Some enchantments can only be obtained through enchanted books. The enchantments are designed for both singleplayer and multiplayer survival worlds, with values tuned to feel balanced.
The mod has two installation paths. The datapack version uses a resource pack and works without Fabric API, while the mod version needs Fabric API on Fabric. Forbidden Library is published for Fabric, Forge and NeoForge, and the datapack works on servers as well. The server must run it, while the client may leave it out, and the mod is released under All rights reserved, so it is not open source. Builds cover 1.21.9 – 26.2 across seven release versions, and the latest file is v3.0+mod for 26.2.
Key features
Enchantments for combat gear
Custom enchantments apply to weapons, tools, shields, projectiles and TNT, extending what the enchanting table can produce.
Movement effects by biome
One enchantment raises movement speed and reduces fall damage in heat-dry biomes, while another does the same in cold, icy biomes.
Exclusive enchantment pairs
Some enchantments cannot be combined with each other, so an item carries one of the conflicting movement effects at a time.
Maximum levels and curses
Enchantments have a set maximum level, and curse effects can be applied through the enchanting table.
Editable datapack values
The datapack exposes a root file with values that a server owner can change to adjust how the enchantments behave.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Optional 1
How it compares
Attack Speed Enchantment is open source under the GNU Lesser General Public License v3.0 or later, and covers 1.21 – 26.3. Slime Boots is not open source, under All rights reserved, and covers 1.21.6 – 26.2. Forbidden Library differs by offering a datapack option and a Fabric path, while both alternatives list their own loader sets and a server-required environment.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Forbidden Library | Fabric, Forge and NeoForge | 1.21.9 – 26.2 | Server required, client optional | 2026-09-09 |
| Attack Speed Enchantment | Fabric, Forge, NeoForge and Quilt | 1.21 – 26.3 | Server required, client optional | 2026-10-07 |
| Slime Boots | Fabric, Forge, NeoForge and Quilt | 1.21.6 – 26.2 | Server required, client optional | 2026-07-08 |
Questions
Does Forbidden Library need Fabric API?
Is Forbidden Library required on the client?
Can the enchantment values be changed?
Which enchantments are hard to obtain?
In the catalog
Forbidden Library is one of 17,631 Equipment mods on ModsFinder, and one of 8,894 Equipment mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
Enchantments and curse may affect weapons, tools, shields, projectiles, or TNT, and are all available directly from the enchanting table. This datapack/mod is designed for both singleplayer and multiplayer worlds and aims to feel balanced within a survival environment.
Official listing
- Modrinth page
- modrinth.com/mod/forbidden-library
- Owner
- Yumetztli
- Published
- 2025-12-08
- Updated on Modrinth
- 2026-09-09
- Facts verified
- 2026-10-15