CurseForge · Minecraft mod
QuantumChunks
Multi-core, region-aware chunk loading for large modded servers
Quick answer
Which QuantumChunks release should I use?
quantumchunks-1.0.jar targets 1.20.2, 1.20.5, 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is QuantumChunks 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 quantumchunks-1.0.jar need?
quantumchunks-1.0.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add QuantumChunks without breaking your instance.
Built for quantumchunks-1.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use quantumchunks-1.0.jar. It targets 1.20.2, 1.20.5, 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 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 quantumchunks-1.0.jar. It opens that exact file at the source.
About this project
What does QuantumChunks add?
⚡ QuantumChunks⚡
Looking for a Fabric Tablist mod for 1.21.X-26.X that works with PlaceholderAPI?
TabCore Fabric
Multi-core, region-aware chunk loading for busy Forge servers.
When many players explore, vanilla tends to pile chunk work onto a single thread. QuantumChunks routes chunk preparation and parts of generation onto a smart worker pool, parallelizing across CPU cores while serializing work inside the same 32×32 region to keep worlds safe and stable.
📈Statistics:

🧠 How it works (in plain English)
Minecraft often asks for a “background executor” to run chunk tasks.
QuantumChunks swaps those calls to a dedicated worker pool.
Each task is tagged with its 32×32 chunk region:
Same region → processed one at a time (no races)
Different regions → processed in parallel across your cores
Result: smoother TPS and fewer MSPT spikes when many players move at once.
🔧 Config (server)
config/quantumchunks-server.toml

📊 Verifying improvements
Use your favorite profiler (e.g., Spark):
/quantumchunks - CPU average usage, chunks loaded for 10 secs/1 minute
/spark tps — watch MSPT during exploration
/spark profiler --timeout 60 — look for chunk work on worker threads
You should see higher total CPU usage (multiple cores active) and fewer >50ms ticks during chunk storms.

Do you want a cheap and secure hosting?
Project description from CurseForge.
Pick your setup
QuantumChunks by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.5
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
QuantumChunks versions and loaders
quantumchunks-1.0.jar
10 Aug 2025
Looking for an older file? The official CurseForge project page is in Resources.
