C2Chunk is a performance-focused core mod for Fabric designed to completely eliminate the traditional world height and depth restrictions in Minecraft.
By fundamentally restructuring how the game handles space, C2Chunk replaces standard vertical sub-chunks with independent 16x16x16 cubic chunks. Instead of loading an entire vertical column from bedrock to the sky, the game dynamically loads only the specific 3D cubes directly surrounding the player. This massive optimization allows you to build, dig, and explore infinitely upwards and downwards with minimal impact on your hardware.
Key Features
- True 3D Chunk Loading — Implements 16x16x16 independent cubic chunks, drastically reducing memory usage at extreme heights.
- Infinite Height & Depth — Build massive skyscrapers or dig into bottomless abysses without hitting hardcoded vanilla limits.
- Lightweight Architecture — Written with a clean codebase focused entirely on one core mechanic to maximize compatibility and performance.
Technical Details & FAQ
- How does it work? Vanilla Minecraft forces the engine to process chunks vertically all at once. C2Chunk breaks this pipeline down, allowing the engine to stream world data horizontally and vertically on demand.
- Is it safe for existing worlds? Since this mod heavily alters world generation and chunk structure, it is highly recommended to generate a brand new world.
- Modpacks: You are fully allowed and encouraged to include this mod in any modpack.
Important Notes
- Backups: Always create a backup of your saves before updating or installing experimental world-generation mods!
Contact Me
If you have any questions, bug reports, or suggestions, feel free to reach out:
- Email: pise4ku@gmail.com
License Copyright (c) 2026 pise4ku. All Rights Reserved.
Permission is hereby granted to use this mod in any personal gameplay, servers, and public/private modpacks, provided that credit is given to the original author (pise4ku) with a link to this Modrinth page. You are NOT permitted to decompile, modify, redistribute, sell, or claim ownership of this mod or its components without explicit written permission from the author.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as C2Chunk 0.0.6 1.21.1.jar — drop this file into the mods folder
- Download size: 609 KB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.