Assembly Expansion
by kirsan122
Assembly Expansion, a Forge technology mod for 1.20.1, adds ore processing, a rubber tree, an engineer's hammer and energy-driven machines to a world.
What it does
Assembly Expansion introduces resource processing, energy generation and basic automation components. It adds tin and lead ores, which can be turned into plates and dusts, and it simplifies extraction, so raw materials reach a usable form with fewer steps. The mod is alpha stage, and the latest Forge file, 0.0.3, was published on 2026-08-16 on the alpha channel.
Two parts of the mod carry most of the new content. The rubber tree grows in swamps and jungles and comes with a full wood set, while the engineer's hammer is crafted from two sticks and two iron ingots and is needed for making plates. Electric machines replace fuel with energy, including an electric furnace that burns anything fuel can burn and draws 20 FE/t in place of fuel, and a sinterer that helps produce steel and mossy blocks.
The mod is a Forge build for 1.20.1 only, with no other game version listed. It runs on the client and the server, so a server and every player need it. Public source exists, but the mod is not open source.
Key features
Tin and lead ores
Tin and lead ores are added, and both can be processed into plates and dusts for crafting.
Rubber tree and wood set
A rubber tree grows in swamps and jungles and comes with a complete set of wood blocks.
Electric furnace
An electric furnace burns anything a regular furnace burns, drawing energy instead of fuel and helping to double ore output.
Mechanical sinterer
A mechanical sinterer handles the steps needed for mossy blocks and steel production.
Engineer's hammer
The engineer's hammer is crafted from two sticks and two iron ingots and is needed for making plates.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Create: SteelWorks is a Forge mod for 1.20.1 that runs on the client and the server and is licensed under the MIT License, but it is not open source. Create: Ore Processing is also a Forge mod for 1.20.1 on client and server under the MIT License and not open source, and Create: Assembly Acquired is Forge for 1.20.1 under All rights reserved, also not open source. Better GregTech And Applied Energistics is open source under the GNU General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Assembly Expansion | Forge | 1.20.1 | Client and server | 2026-08-16 |
| Create: SteelWorks | Forge | 1.20.1 | Client and server | 2025-12-27 |
| Create: Ore Processing | Forge | 1.20.1 | Client and server | 2025-05-27 |
| Create: Assembly Acquired | Forge | 1.20.1 | Client and server | 2025-03-01 |
| Better GregTech And Applied Energistics | Forge | 1.20.1 | Client and server | 2026-09-05 |
Questions
Which loader does Assembly Expansion support?
Does the server need Assembly Expansion?
In the catalog
Assembly Expansion is one of 8,499 Technology mods on ModsFinder, and one of 4,122 Technology mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from kirsan122
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What the author says
Assembly Expansion is a technology mod currently in its alpha stage. It introduces resource processing mechanics, energy generation, and basic automation components.
Official listing
- Modrinth page
- modrinth.com/mod/assembly_expansion
- Owner
- kirsan122
- Published
- 2026-07-12
- Updated on Modrinth
- 2026-08-16
- Facts verified
- 2026-10-15