CurseForge · Minecraft mod
GregTech Classic
A rewrite of GT1 for IC2 Classic
This page is having a moment, so a few details may be a little behind.
Quick answer
Which GregTech Classic release should I use?
GregTech Classic GTClassic-1.2.2.jar targets 1.12.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is GregTech Classic required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does GregTech Classic GTClassic-1.2.2.jar need?
GTClassic-1.2.2.jar. Change the file and its required mods may change too.
Install IC2 Classic first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add GregTech Classic without breaking your instance.
Built for GregTech Classic GTClassic-1.2.2.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use GTClassic-1.2.2.jar. It targets 1.12.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install IC2 Classic first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside GTClassic-1.2.2.jar. It opens that exact file at the source.
About this project
What does GregTech Classic add?
GregTech Classic is re-envisioning of earlier GT's for 1.12.2 IC2 Classic. The goal being to make a small and fun "classic" GregTech to pair with IC2 Classic's play style. This mod aims to not force the user into a hardcore GregTech progression but give options, features, and utilities to create a fun and evolving experience.
*Recently updated to work with the latest Forge and IC2 Classic.
This is not created or maintained in any way by Greg:![]()
Project description from CurseForge.
Pick your setup
GregTech Classic by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.12.2
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
GregTech Classic versions and loaders
GTClassic-1.2.2.jar
25 Nov 2025
GTClassic-1.2.1.jar
6 Mar 2025
GTClassic-1.1.7.jar
28 Sept 2021
GTClassic-1.1.6.jar
18 Sept 2020
GTClassic-1.1.5.jar
20 Jul 2020
GTClassic-1.1.4.jar
6 Apr 2020
GTClassic-1.1.3.jar
21 Mar 2020
GTClassic-1.1.2.jar
6 Mar 2020
GTClassic-1.1.1.jar
21 Feb 2020
GTClassic-1.1.0.jar
25 Jan 2020
GTClassic-1.0.9.jar
10 Jan 2020
GTClassic-1.0.8.jar
5 Dec 2019
Looking for an older file? The official CurseForge project page is in Resources.