Logo
MINECRAFTBIBLE
Items
Items

All game items

Blocks
Blocks

Building blocks

Mobs
Mobs

Creatures & monsters

Biomes
Biomes

World biomes

Structures
Structures

Generated structures

Recipes
Recipes

Crafting guides

Advancements
Advancements

Achievements

Loot Tables
Loot Tables

Drop rates

Tags
Tags

Item groupings

All Versions
View all data →
Capes
Cape ArchiveNEW

Browse rare Minecon capes, OptiFine capes, and custom capes from players worldwide

Browse

Player Database
Player DatabasePopular

Search any player

Skin Browser
Skin Browser

Browse & download skins

Cape Gallery
Cape GalleryNEW

Minecon & OptiFine capes

Seed Vault
Seed Vault

Curated seeds

Learn

Guides
GuidesNew

Tutorials & tips

Blog
Blog

News & updates

Community

Community Hub
Community HubHub

Posts, discussions & more

All Versions
View community →
Seed Analyzer
Seed Analyzer

World seed analysis

Loot Explorer
Loot Explorer

Drop rates

Crafting Calculator
Crafting Calculator

Material planning

Enchant Calculator
Enchant Calculator

Probability math

Redstone Lab
Redstone Lab

Signal timing

Trading Profit
Trading Profit

Villager ROI

All Versions
View all tools →
Mods
Mods

Browse all mods

Plugins
Plugins

Server plugins

Resource Packs
Resource Packs

Textures & sounds

Shaders
Shaders

Visual enhancements

Datapacks
Datapacks

World logic

Scanner
Mod Intelligence

Scan & analyze any mod

All Versions
View all mods →
Loading...
IntroductionIntroductionVersion HistoryVersion HistoryGuidesGuidesBlog & NewsBlog & News
ItemsItemsBlocksBlocksMobsMobsRecipesRecipesBiomesBiomesStructuresStructuresAdvancementsAdvancementsLoot TablesLoot TablesTagsTags
ModsModsPluginsPluginsResource PacksResource PacksShadersShadersDatapacksDatapacks

MinecraftBible

The Ultimate Wiki

Logo
MINECRAFTBIBLE

The ultimate Minecraft reference. Every item, block, mob, and recipe documented with precision.

Community

  • Skin Browser
  • Cape Gallery
  • Seed Vault
  • Blog
  • Guides

Database

  • Items
  • Blocks
  • Mobs
  • Recipes
  • Biomes
  • Structures

Tools

  • Seed Analyzer
  • Mod Intelligence
  • Crafting Calculator
  • Enchant Calculator

Mods & Packs

  • Mods
  • Plugins
  • Resource Packs
  • Shaders
  • Datapacks

Site & Legal

  • About
  • Authors
  • Editorial Policy
  • Corrections
  • Contact
  • Privacy Policy
  • Terms of Service
  • DMCA
  • Sitemap

© 2026 MinecraftBible. Not affiliated with Mojang or Microsoft.

PrivacyTermsContact
Concurrent Chunk Management Engine (NeoForge)
ModMIT

Concurrent Chunk Management Engine (NeoForge)

A mod designed to improve the chunk performance of Minecraft.

517.6K
Downloads
220
Followers
4 months ago
Updated
📦
30
Versions
optimizationneoforge
Download Latestv0.3.0+alpha.0.89+1.21.1View on Modrinth

📖About Concurrent Chunk Management Engine (NeoForge)

Concurrent Chunk Management Engine (NeoForge)

A mod designed to improve the chunk performance of Minecraft.

Looking for fabric versions?

So what is C2ME?

C^2M-Engine, or C2ME for short, is a 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 ScalableLux.

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.

Vanilla parity

C2ME does not sacrifice vanilla functionality or behavior, or alter the vanilla world generation in the name of raw speed by default.
However, due to the non-determinism of vanilla world generation, worlds will vary
significantly run-to-run even with the same seed. This is not a bug on our side.

While we carefully check that we do not modify any vanilla behavior, bugs are unavoidable after all.
So, if you do encounter an issue where C2ME deviates from the intended vanilla behavior, don't hesitate to open an issue.

Mod and Datapack compatibility

World generation datapacks that can run on vanilla Minecraft are fully supported.
Custom world generators implemented in mods usually runs well, but may cause compatibility issues due to certain
design assumption used by mod authors being broken for further speedups of world generation.
As a world generation mod author, if you find your mod broken, don't hesitate to look for help in our discord server (linked below).
We are willing to help mod authors to embrace scalable world generation.

Undefined behavior sanitization

C2ME includes CheckedThreadLocalRandom for world random (included in UWRAD) plus a few others.
These detections exist to prevent mods from screwing up Minecraft internals and causing undebuggable problems.
The detection should almost never produce false positives, and should be taken seriously and reported
to corresponding mod authors instead.

Usage notice

Backup your worlds and practice good game modding skills.

Support status for Minecraft versions

Only the latest Minecraft release and the latest Minecraft snapshot are fully supported.
Older Minecraft releases are in long-term support and will receive critical bug fixes.
Older Minecraft snapshots are not supported.

Support

Our issue tracker: link
Our discord server: link

More information

Check out the README.md here: https://github.com/RelativityMC/C2ME-neoforge

👥 Team & Contributors

ishland
ishlandOwner

⚙️ Compatibility

Environment
🖥️ Server-side
Loaders
neoforge
Minecraft Versions
1.21.1

🔗 Links

Modrinth Page