ProjectEF Neo

Equivalent Exchange: Reborn for Fabric
中文名：[Fabric]等价交换Neo
Minecraft 1.21.1 · Fabric

Overview

ProjectEF Neo is a modern Fabric port of the classic ProjectE mod — the complete Equivalent Exchange experience on Minecraft 1.21.1.

The "F" stands for Fabric. ProjectEF Neo keeps the classic EMC (Energy-Matter Covalence) gameplay intact:

• Convert items into EMC and permanently learn their value.
• Recreate learned items anytime through the Transmutation Table or the portable Transmutation Tablet.
• Automate EMC production with Collectors, Relays, and Condensers.
• Progress from the Philosopher's Stone to Dark Matter / Red Matter tools and GEM armor.

Existing ProjectE configuration files, resource paths, datapacks, and world data remain compatible wherever possible.

Project Status

Component	Version
Minecraft	1.21.1
ProjectEF Neo	1.2.2
Mod Loader	Fabric Loader 0.16.9+
Fabric API	0.116.14+1.21.1
Java	21
Build System	Fabric Loom 1.10.5

Features

EMC & Transmutation

• Item ↔ EMC conversion with permanent item knowledge.
• Transmutation Table and portable Transmutation Tablet.
• Configurable custom EMC values (custom_emc.json / in-game commands).

EMC Generation & Automation

• Energy Collectors (MK1–MK3)
• Anti-Matter Relays (MK1–MK3)
• Energy Condensers (MK1/MK2)
• Dark Matter Pedestal

Equipment & Utility Items

• Philosopher's Stone — block transmutation and world conversion.
• Dark Matter and Red Matter tools with configurable area mining.
• Dark Matter Furnace and Red Matter Furnace.
• Alchemical Bags and Eternal Density gems.
• Swiftwolf's Rending Gale.
• Full GEM Armor abilities: night vision, step assist, flight, and combat effects.

Trinkets Integration

Accessory slots are provided through Trinkets: equip rings, amulets, charms, and Klein Stars in the hand/ring and chest/necklace slots. ProjectEF Neo works without Trinkets — accessories simply behave as regular inventory items.

Compatibility & Localization

• Built-in EMC values for classic Avaritia items.
• Full Simplified Chinese and English localization.
• Compatible with original ProjectE configuration format and mod ID (projecte).

Installation

Requirements

• Minecraft 1.21.1
• Fabric Loader 0.16.9 or newer
• Fabric API (1.21.1 compatible version)
• Java 21

Forge Config API Port and fabric-permissions-api are bundled inside the ProjectEF Neo JAR (jar-in-jar). No extra downloads needed.

Steps

1. Install Minecraft 1.21.1 with Fabric Loader.
2. Install a compatible Fabric API version.
3. Download the latest ProjectEF Neo release.
4. Place the JAR file into your Minecraft mods folder.

Optional Integrations

These mods only enhance the experience and are never required:

• JEI / EMI / REI — recipe viewers
• Jade / WTHIT — block information overlays
• Trinkets — accessory slots

Building from Source

Clone the repository:

git clone https://github.com/wchiway/ProjectEF.git

cd ProjectEF

Build the project:

./gradlew build

Windows:

gradlew.bat build

Build output:

build/libs/

Run the Fabric development client:

./gradlew runClient

The development recipe viewer defaults to JEI. The recipe_viewer property accepts jei, emi, rei, hybrid, or none.

To use EMI or REI:

./gradlew runClient -Precipe_viewer=emi
./gradlew runClient -Precipe_viewer=rei

Compatibility Notes

ProjectEF Neo keeps the original ProjectE mod identifier:

projecte

This allows compatibility with:

• Existing configuration files
• Existing resource paths
• Existing world data

The following integrations from the NeoForge version are not included:

• CraftTweaker
• The One Probe
• Curios (replaced by Trinkets on Fabric)

Reporting Issues

When reporting a bug, please include:

• ProjectEF Neo version
• Minecraft version
• Fabric Loader version
• Fabric API version
• Steps to reproduce
• Relevant game logs

Please attach logs as files or external paste links instead of posting complete logs directly in the issue.

Developer

Chiway Wang

Fabric port developer and maintainer.

Credits

ProjectEF Neo is based on the original ProjectE project.

Special thanks to:

• ProjectE developers and contributors
• EE2 original creators
• Minecraft modding community

Original contributors include:

• SinKillerJ
• pupnewfster
• MaPePeR
• williewillus
• Lilylicious
• MozeIntel
• Kolatra

Additional credits:

• x3n0ph0b3 — EE2 creator and original asset permissions
• MidnightLightning — EE2 GUI textures

License

ProjectEF Neo is released under the MIT License.