Hidden Enchantments

A small, hand-tuned NeoForge mod that adds seven new enchantments to Minecraft. Most of them aren't in the enchanting table: you find them in ancient city chests and rare librarian trades. No bloat, no power creep, no 50-enchantment dump. Each one does a single specific thing and tells you what it does right in the tooltip.

Built and tested on Minecraft 1.21.1 with NeoForge. Works on dedicated servers: install the same jar on both client and server.

Features:

Seven new enchantments: each with a colored name and a gray description line under it explaining what it does, like potions show their effects.
Treasure-only enchantments: Lifesteal, Smelter, and Homing can't be rolled in the enchanting table. You find them as books in ancient city chests or buy them from librarians at doubled emerald price.
Smart Homing arrows: arrows curve toward the foe you're aiming at, up to 50 blocks. Line-of-sight required so they don't track through walls.
Anvil restrictions for this mod's enchantments only: you can't put Night Vision on a sword in an anvil. Vanilla anvil behavior is otherwise untouched.
Sensible conflicts: Lifesteal blocks Mending, Smelter blocks Silk Touch, Homing blocks Multishot, Shocked and Crippling are mutually exclusive.

The Seven

Enchantment	Levels	Goes on	What it does
Lifesteal	I to IV	Sword, Axe	Heals you for 10% of damage dealt per level (up to 40%)
Smelter	I	Pickaxe	Block drops auto-smelt as they fall, plus smelting XP
Homing	I	Bow	Arrows curve toward the foe you're aiming at
Shocked	I to III	Sword, Axe	Briefly stuns the target with heavy slowness and mining fatigue
Crippling	I to III	Sword, Axe	Slows the target for 4 seconds after each hit
Replant	I	Hoe	Auto-replants fully grown crops when harvested
Night Vision	I	Helmet	See in the dark while worn

How to get them:

The four enchanting-table enchantments (Shocked, Crippling, Replant, Night Vision) appear in the table normally, scaled to your bookshelf setup.

The three treasure enchantments (Lifesteal, Smelter, Homing) cannot be rolled at the table. To find them:

Ancient city chests have a 3% chance per chest to contain a treasure book. The roll is weighted toward Homing (3:1:1 vs Lifesteal and Smelter), at a random level from 1 to that enchantment's max.
Librarian villagers can sell them as enchanted books at doubled emerald price (the same way vanilla treasure enchantments are priced).

Installation:

Install NeoForge for Minecraft 1.21.1.
Download hiddenenchantments-1.0.0.jar.
Place it in your mods/ folder.
Launch.

No config file, no extra dependencies, no setup. The same jar works on both client and server for dedicated multiplayer.

Why no enchanting table for the treasure three?

The whole point of Lifesteal, Smelter, and Homing is that they're rare and worth hunting for. If you could roll them at the table they'd feel like another power-creep option. Making them treasure-only means finding one is a genuine reward and the early-game enchanting table stays focused on the quality-of-life enchantments.

License

MIT. Free to use, modify, and redistribute. Credit appreciated but not required.