So what is C2ME?

C^2M-Engine, or C2ME for short, is a Fabric mod designed to improve the performance of chunk generation, I/O, and loading. This is done by taking advantage of multiple CPU cores in parallel. For the best performance it is recommended to use C2ME with Lithium and Starlight.

What does C2ME stand for?

Concurrent chunk management engine, it's about making the game better threaded and more scalable in regard to world gen and chunk io performance.

So what is C2ME not?

C2ME is currently in alpha stage and pretty experimental.
Although it is usable in most cases and tested during build time, it doesn't mean that it is fully stable for a production server.
So backup your worlds and practice good game modding skills.

Branch development status

[^forge_partial116]: Forge doesn't appear to support Java 16 on 1.16.5, so these versions uses Java 11 and may not contain some features which is present in the fabric versions.

Downloads

You can find semi-stable releases here: https://github.com/RelativityMC/C2ME-fabric/releases

Development builds

Note: Development builds may modify the config files in a way unreadable by previous versions. You may encounter crashes or config reset when rolling back to previous versions. Please always backup your config.

You can find development builds here: https://ci.codemc.io/job/RelativityMC/job/C2ME-fabric
Note that these builds may contain more bugfixes and performance improvements but are less tested.
If you have encountered any problems in release builds, give development builds a try before reporting.

Support

Our issue tracker: link
Our discord server: link

Building and setting up

JDK 17+ is required to build and use C2ME
Run the following commands in the root directory:

./gradlew clean build

License

License information can be found here.