GregTech Experimental
by Su5eD
GregTech Experimental is a GregTech 3 rewrite for 1.12.2 that brings industrial machines, upgrades and recipe tooling into the game.
What it does
The mod is a fully featured port of GregTech 3 for modern Minecraft versions, built on a cleaned-up codebase that rewrites the original. Machine performance is improved and several bugs are fixed, while the original GT3 form stays available for players who want it unchanged. Machines, tools and upgrades follow the familiar GregTech layout, and fluids and tools are adjusted so recipes fit the system together.
Balance has been reworked to accommodate the experimental changes made to IndustrialCraft 2, so the two mods work together as intended. Industrial Craft is required and must be installed alongside GregTech Experimental. Just Enough Items (JEI) and Tinkers' Construct are optional; JEI adds recipe lookup and Tinkers' Construct adds further compatibility.
The mod is published for Forge only, for 1.12.2 as its single game version, with the latest file 1.0.3 dated 2026-08-13. It is released under the GNU Lesser General Public License v3.0 or later and is open source, with public source code, an issue tracker and a wiki. Client and server both need it, so players and the server must run the same build.
Key features
Machine and tool overhaul
Machines, upgrades and tools are reworked from GregTech 3 with performance improvements and bug fixes.
Configurable recipe system
Recipes can be adjusted through a configurable system that controls how machines and materials interact.
Quality-of-life changes
Several small interface and workflow improvements reduce friction when operating the machines.
Addon API
A broad API makes it simpler to build addons that extend the mod with new machines and content.
Adjusted balance
Fluids, tools and recipes are tuned so the progression fits together after the IndustrialCraft 2 changes.
Gallery
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.
Required 1
Optional 2
How it compares
Epimorphism Core is a Forge library for 1.12.2 that runs on client and server under the MIT License, and is open source. IC2X UU-Matter is a Forge mod for 1.12 – 1.12.2 that is client-side only and open source under the MIT License, so servers do not need it. VGT Expansion is a Forge mod for 1.12.2 covering client and server, open source under the GNU General Public License v3.0 or later. GregTech CE Unofficial is a Forge mod for 1.12.2 under the GNU Lesser General Public License v3.0 only, and it targets client and server as well.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| GregTech Experimental | Forge | 1.12.2 | Client and server | 2026-08-13 |
| Epimorphism Core | Forge | 1.12.2 | Client and server | 2023-11-25 |
| IC2X UU-Matter | Forge | 1.12 – 1.12.2 | Client-side only | 2023-04-23 |
| VGT Expansion | Forge | 1.12.2 | Client and server | 2026-01-30 |
| GregTech CE Unofficial | Forge | 1.12.2 | Client and server | 2024-07-10 |
Questions
Does GregTech Experimental require Industrial Craft?
Must the server run GregTech Experimental?
Which game version does GregTech Experimental support?
In the catalog
GregTech Experimental is one of 8,499 Technology mods on ModsFinder, and one of 4,122 Technology mods for Forge. 2,920 mods support Minecraft 1.12.2.
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What the author says
GregTech Experimental is a fully-featured port/rewrite of GregTech 3 for modern minecraft versions, and an addon for IC2 Experimental. It offers all features of GT3, in their original form, unchanged. Machines, covers, upgrades, tools, as you know them. GregTech, originally created by Gregorious Technecities, is a…
Official listing
- Modrinth page
- modrinth.com/mod/gregtech-experimental
- Owner
- Su5eD
- Published
- 2023-02-04
- Updated on Modrinth
- 2026-08-13
- Facts verified
- 2026-10-15