GT--
by Arborsm
GT-- is a Forge and NeoForge technology addon for GregTech CEu Modern that adds rocket engines, Naquadah generators and specialized processing machines.
What it does
Installed next to GregTech CEu Modern and LDLib, GT-- brings extra machines into the GregTech production line. Rocket engines burn rocket fuel to produce electricity, while Naquadah generators take Naquadah as their power source, with a larger multiblock version for high output. A Neutron Activator handles Naquadah processing, and the mod adds chemical plants that use rocket fuel in their production chains.
The mod also adds a precision assembly machine modeled on the large assembly machine of GregTech Modern, and some of its features are marked as subject to change in future versions. It runs on client and server, so servers and every player need it. Forge and NeoForge builds cover 1.20.1 – 1.21, and the code is open source under the GNU Affero General Public License v3.0 or later.
Key features
Rocket engines
Block machines that consume rocket fuel and generate electricity for the production line.
Naquadah generators
A standard generator and a large multiblock generator that burn dedicated Naquadah fuel for power.
Neutron Activator
A machine dedicated to processing Naquadah in recipes that no other machine in the set handles.
Precision assembly
A multiblock assembly machine that follows the design of GregTech Modern's large assembly machine.
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 2
Required by 1 mod
Use cases
Power from rocket fuel
A GregTech base can use rocket engines as an electricity source fed by rocket fuel production chains.
Who it’s for: Players who already run GregTech CEu Modern and want Naquadah power and processing added to their factories. Server owners adding the same content need the mod on the server as well as on each client.
How it compares
Useful Machinery is open source under the MIT License and runs on Forge and NeoForge for 1.19.3 – 26.1.2, a wider version span than GT--. Machines mod is closed source under the MIT License, Forge only, for 1.20.1 – 1.21.1. GTCEu Greenhouse and gtceu_extra target 1.20.1 only on Forge, with GTCEu Greenhouse open source and gtceu_extra not. Mekanism Extra is open source under the MIT License for Forge and NeoForge, 1.20.1 – 1.21.1, and covers machines from a different mod family rather than GregTech ones.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| GT-- | Forge and NeoForge | 1.20.1 – 1.21 | Client and server | 2026-09-07 |
| Useful Machinery | Forge and NeoForge | 1.19.3 – 26.1.2 | Client and server | 2026-06-26 |
| Machines mod | Forge | 1.20.1 – 1.21.1 | Client and server | 2026-06-17 |
| GTCEu Greenhouse | Forge | 1.20.1 | Client and server | 2025-07-05 |
| gtceu_extra | Forge | 1.20.1 | Client and server | 2024-12-08 |
| Mekanism Extra | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-08-18 |
Questions
Does GT-- need GregTech CEu Modern?
Does GT-- have to be installed on the server?
Which loader should be chosen for GT--?
Does Qilby Core require GT--?
In the catalog
GT-- is one of 8,499 Technology mods on ModsFinder, and one of 4,122 Technology mods for Forge. 15,770 mods support Minecraft 1.21.
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Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/gtnn
- Owner
- Arborsm
- Published
- 2024-03-11
- Updated on Modrinth
- 2026-09-07
- Facts verified
- 2026-10-15