CurseForge · Minecraft mod
StellarCore
Full range of optimized mod for a better 1.12.2.
Quick answer
Which StellarCore release should I use?
StellarCore-1.6.5.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 2 required mods have matching files.
Where it goes
Is StellarCore 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 StellarCore-1.6.5.jar need?
StellarCore-1.6.5.jar. Change the file and its required mods may change too.
Install ConfigAnytime, MixinBooter first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add StellarCore without breaking your instance.
Built for StellarCore-1.6.5.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use StellarCore-1.6.5.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 ConfigAnytime, MixinBooter first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 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 StellarCore-1.6.5.jar. It opens that exact file at the source.
About this project
What does StellarCore add?
StellarCore Project
This mod requires MixinBooter 8.0+ and ConfigAnyTime 2.0+ to work!
Introduction
StellarCore is a mod that provides extensive bug fixes, performance improvements, and additional features across a wide range of mods, driven by Mixin technology.
Both Server and Client need to install this mod.
There are too many features to list on this page, look for features on the Sample Configuration page!
Compatibility Note
StellarCore is designed to work with other mods, but as a result there are parts that do not work with some mods, the following are parts that may need to be manually configured by the user:
CensoredASM
resourceLocationCanonicalizationmust be turned to false to use StellarCore'sResourceLocationCanonicalisationfeature
VintageFix
vintagefix.mixin.dynamic_resourcesmust be turned to false to use StellarCore'sParallelModelLoaderfeaturevintagefix.mixin.dynamic_resourcesmust be turned to false to use StellarCore'sStitcherCachefeaturevintagefix.mixin.texturesmust be turned to false to use StellarCore'sParallelTextureLoadfeaturevintagefix.mixin.resourcepacksmust be turned to false to use StellarCore'sResourceExistStateCachefeature
How is it different from xxx?
We have more (currently 100+ features, adjustable in the config file).
Like most fix mods, we modify the code to make features work, but our invasiveness is minimal, so you can usually install it alongside other mods without issues.
Why do most config files lack detailed descriptions?
This mod is still in a relatively early stage of development, but they are already stable!
Can I add this mod to my ModPack...?
Yes! You can freely add this mod to your ModPack and modify it without restrictions, as long as you are not a bad actor.
I encountered xxx issue...
Please go to the Source page to submit an issue. We welcome everyone to participate in the development of this mod project!
Join our discord for faster resolve problem: Cleanroom This mod is fully support CleanroomLoader!
Project description from CurseForge.
Pick your setup
StellarCore by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.12.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
StellarCore versions and loaders
StellarCore-1.6.5.jar
24 Oct 2026
StellarCore-1.6.4.jar
8 Oct 2026
StellarCore-1.6.3.jar
1 Oct 2026
StellarCore-1.6.2.jar
22 Sept 2026
StellarCore-1.6.1.jar
10 Sept 2026
StellarCore-1.6.0.jar
10 Jul 2026
1.5.22
StellarCore-1.5.22.jar
30 Apr 2025
1.5.21
StellarCore-1.5.21.jar
1 Dec 2024
1.5.20
StellarCore-1.5.20.jar
20 Nov 2024
1.5.13
StellarCore-1.5.13.jar
31 Oct 2024
1.5.4
StellarCore-1.5.4.jar
7 Oct 2024
1.5.3
StellarCore-1.5.3.jar
7 Oct 2024
Looking for an older file? The official CurseForge project page is in Resources.