GregTech Classic
ModAdds classic GregTech machines and crafting to your IC2 world.
Why gradeD
How grades workStrengths
Points lost
- No release in 11 months−17 points
- Releases in only 2 of the last 24 months−5 points
- Some modpacks removed it−2 points
- Under 5 million downloads−1 point
All 11 criteria
Maintenance
15 points lost12 / 27Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.11 months ago (25 Nov 2025) 2 / 12Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.12.2 on Forge. A version many modpacks still use. Latest Minecraft: 26.3. 9 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 2 of the last 24 months 1 / 6Stability
2 points lost13 / 15Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.4 of the 29 modpacks with two or more versions removed it in a later one (14%) See the 4 modpacks8 / 10Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5Transparency
Full points7 / 7Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · e99999/GT-Classic 7 / 7Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.Does not apply. CurseForge links are not in our data.Popularity
1 point lost3 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.29,147 3 / 4Track record
7 points lost1 / 8AgeHow long the project has existed. It counts less when no new file came out recently.7.4 years, 24 releases 1 / 8Security
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the latest file. See Security
36.4 of the 61 points that apply = 60 out of 100. The points above are rounded to whole numbers.
Images
About
GregTech Classic is a GT1-inspired rewrite for IC2 Classic, adding a compact set of technology, processing and utility options intended to complement IC2 Classic without forcing a hardcore progression path. Its machines include the Industrial Centrifuge, which separates items into components and helps recover materials, and the Matter Fabricator, which consumes stored EU to produce UU-matter from eligible inputs. The UU-Matter Assembler combines scanning, crafting and replication: scan a valid item, select it as the target, then replicate it using stored UU-matter and energy; it also retains its recipes, energy and UU-matter when broken. Large-scale power options include a Lightning Rod that converts strikes into EU and a Fusion Reactor that fuses elements, with some recipes producing substantial excess energy. Energy storage ranges from adjustable AESUs to IDSUs that link their stored power across matching units, while practical logistics blocks include portable 32-bucket drums, power-free Quantum Chests and Tanks, and item and fluid buffers. A Magic Energy Absorber can generate 128 EU per tick from a valid trophy, including Twilight Forest trophies or a Dragon Egg. The mod also adds ore and processing details such as Ruby and Sapphire spawning in different biome types, scanner and magnifying-glass biome information, and some Twilight Forest processing recipes. CraftTweaker support lets pack makers add or remove recipes for systems such as the Industrial Centrifuge, Fusion Reactor and Matter Fabricator.
Written from CurseForge and the GitHub README . How we write it
In-game changes
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.12.2.
Adds 1 item: Glass Tube; 2 sounds: Sonar and Spring.
Counted from the names and data files in the mod, so the list may not be complete.
Keeps all of vanilla Minecraft's textures, models and sounds.
Often used with it
See all 30Details
- Creator
- e99999
- License
- Not known
- Downloads
- 29K
- Created
- 13 Jun 2019
- Official page
- CurseForge
- Links
- Source code
Security
No harmful code found
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.12.2.
We checked its files and read their code, without running it.
Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.
How we checked
- FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.1 latest file. It is not for a recent Minecraft version, so the answer above is about it. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
- Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.Read without running it
- Looked for, not foundWe looked for these in the file and did not find them.The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.
Privacy
We found nothing it sends
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.12.2.
We read its code without running it: it contacts no web address while you play.
Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.The code of its one file, for Minecraft 1.12.2. See each file in Releases
AI
No sign so far that AI was used to make it
We looked for AI tools in its texts, files, images and sounds and found none.
We have not read its code history yet.
No sign of AI in the game
We found no AI service, AI library or AI model file in its code.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.Not on Modrinth.
- Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.Not read yet
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found4 of 40 changelogs read
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Nothing found
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Nothing found54 images read
- Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.Nothing found3 sounds read
- Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.No AI service, AI library or AI model file320 code files read
Compatibility
See all 24 filesPoint at or tap a version to see its loaders.
Related projects
Projects that need GregTech Classic to work.
Modpacks using this project
Find modpacks with it32 modpacks include GregTech Classic in at least one of their versions. Here are the 30 most downloaded.
SLCP419K downloadslast version with it 2 Jul 2020
Unabridged V13K downloadslast version with it 28 Jan 2021
FUGaming aka Tangent Dimension 32.3K downloadslast version with it 17 Jan 2021
Common electricity2K downloadslast version with it 6 May 2020
ExoTech 21.6K downloadslast version with it 25 Mar 2021
GT + Magic1.4K downloadslast version with it 14 Jul 2020
RootBack1.2K downloadslast version with it 3 Apr 2020
Alchimia Classic Reforged808 downloadslast version with it 8 Feb 2020
Survivalist Hell Pack797 downloadslast version with it 16 Jul 2022
GregTech with everything773 downloadslast version with it 15 Jul 2021Often in the same modpacks
Mods that modpacks often add together with GregTech Classic. Share: how many of the modpacks with GregTech Classic also have that mod.
IC2ClassicAModin 100% of the modpacks with GregTech Classic
ForestryBModin 84% of the modpacks with GregTech Classic
CoFH WorldDModin 84% of the modpacks with GregTech Classic
FoamFixCModin 81% of the modpacks with GregTech Classic
Inventory Tweaks [1.12 only]-Modin 78% of the modpacks with GregTech Classic
ChiselCModin 78% of the modpacks with GregTech Classic
Thermal FoundationCModin 78% of the modpacks with GregTech Classic
RailcraftDModin 75% of the modpacks with GregTech Classic
Thermal DynamicsCModin 75% of the modpacks with GregTech Classic
BuildCraftCModin 72% of the modpacks with GregTech ClassicLatest files
The newest file for each Minecraft version and loader. None is for a recent Minecraft version. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.