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Applied Energistics 2 Unofficial Deconstructed

Modernized Applied Energistics 2 fork for Minecraft 1.12.2

Forge
Loaders
Forge
Downloads on Modrinth
1.4K
Followers on Modrinth
0
versions
2
Updated
August 23, 2026Aug 23
Published
in 2026

At a glance

Runs on Forge
For Minecraft 1.12.2
Needed in the game and on the server
Latest version — 1.5.0 from August 23, 2026
License LGPL-3.0-or-later — free
Where it's needed
In gamerequiredOn serverrequired

Needed both in the game and on the server

Game versions1.12.2

Applied Energistics 2 Unofficial Deconstructed

AE2UD is an independently maintained and heavily reworked Applied Energistics 2 fork for Minecraft 1.12.2.

Important compatibility warning: AE2UD is not compatible with existing worlds that used AE2 Unofficial Extended Life. Addons made for AE2 UEL or standard AE2 are also incompatible unless they explicitly support AE2UD. Back up your world before installing or updating the mod.

It continues the work of AE2 Unofficial Extended Life, with further fixes, performance improvements, QoL features, fluid support, and substantial internal modernization.

Highlights

  • Improved item and fluid storage, terminals, cells, buses, interfaces, and autocrafting.
  • Better crafting planning and status information, including progress, steps, elapsed time, requesters, and ME stock usage.
  • Numerous fixes for large or heavily modded networks and Minecraft 1.12.2 mod interactions.
  • Additional QoL features for patterns, interfaces, terminals, wrenches, and creative storage cells.
  • Ongoing API and internal restructuring intended to make the codebase easier to maintain and extend.

See the full changes list for details.

Compatibility notice

AE2UD is not a drop-in replacement for standard AE2 or other AE2 forks. Existing worlds using AE2 UEL cannot be migrated safely, and addons must explicitly support AE2UD.

Lineage and credits

AE2UD is based on AE2 Unofficial Extended Life, which itself continues the Minecraft 1.12.2 version of Applied Energistics 2, originally created by AlgorithmX2 and its contributors.

Selected fixes, features, implementation ideas, and reference code were also adapted from:

AE2UD is an independent project and is not affiliated with or endorsed by those projects or their maintainers.

License

The main mod code is distributed under LGPLv3, the API under MIT, textures and models under CC BY-NC-SA 3.0, and text and translations under CC0. Full attribution and licensing details are available in THIRD_PARTY_NOTICES.md.

Links

FAQ

How to install Applied Energistics 2 Unofficial Deconstructed?

Install Forge for your Minecraft version, download Applied Energistics 2 Unofficial Deconstructed for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Applied Energistics 2 Unofficial Deconstructed support?

Applied Energistics 2 Unofficial Deconstructed has builds for Minecraft 1.12.2.

Is Applied Energistics 2 Unofficial Deconstructed needed on the server?

Needed in the game and on the server

License and source
GNU Lesser General Public License v3.0 or laterfree to use and share; changes to the mod itself must be published under the same license
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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