Source-checkedGameplay & overhauls

Ksyxis

by VidTu · for Minecraft

Speed up your world loading by removing unneeded chunks.

8.5MDownloads
26d agoLast updated
MITLicense
Fabric · Forge +4Loaders

About Ksyxis

From Modrinth

Speed up your world loading by removing unneeded chunks.

Ksyxis

Speed up your world loading by removing unneeded chunks.

Language

Downloads

Dependencies

  • Fabric, Forge, NeoForge, Quilt, Legacy Fabric, or Ornithe
  • Minecraft (1.8 or newer)
  • Forge 1.8-1.14.4 only: Any Mixin provider, at your choice (such as

MixinBootstrap, MixinBooter, UniMixins, or any other)

About

Depending on your game version, Minecraft loads some chunks when you create your world. Sometimes, these chunks are always loaded in the background. Either way, whether these chunks being loaded is a one-time performance slowdown, or a constant performance penalty, most players don't need any of these chunks. This mod completely disables unneeded chunks in the game.

Note: Unneeded chunks are sometimes used by farms and technical contraptions. If you'll need these chunks, you can always delete the mod later to re-enable these chunks.

A demonstration GIF of world loading speed improvements with Ksyxis

Versions

| Version | Effect | Note | |---------------|---------------|------------------------------------------------------------------------------------------------------------------------------------------------| | 1.21.9+ | Insignificant | A 7x7 area of chunks won't be loaded around the player when they join, and a fake 500ms world creation delay in single-player will be removed. | | 1.20.5-1.21.8 | Low | A 5x5 area of spawn chunks won't be loaded constantly in the background. | | 1.8-1.20.4 | Extreme | A 21x21 area of spawn chunks won't be loaded constantly in the background. |

FAQ

Q: I need help, have some questions, or have some other feedback. A: You can join the Discord server.

Q: Where can I download this mod? A: Modrinth, CurseForge, or GitHub Releases. You can also find unstable builds at GitHub Actions. You will need a GitHub account to download these.

Q: Which mod loaders are supported? A: Fabric, Forge, NeoForge, Quilt, Legacy Fabric, and Ornithe.

Q: Which Minecraft versions are supported? A: Minecraft versions 1.8 and newer.

Q: Why support so many Minecraft versions? A: Because I can.

Q: Do I need Fabric API or Quilt Standard Libraries? A: Not necessarily.

Q: Where are the Fabric, Forge, NeoForge, Quilt, etc. versions? A: All in the same file.

Q: Is this mod client-side or server-side? A: This mod works on the server and on the client in singleplayer. It has no effect on the client when playing multiplayer.

Q: Is this mod stable for use? A: Should be fine. If it breaks something, just delete it and your worlds will be fine.

Q: I've found a bug. A: Report it here. If you are not sure whether this is a bug or a simple question, you can join the Discord. Report security vulnerabilities here.

Q: Can I use this in my modpack? A: Sure. Credit (e.g., a link to the mod's GitHub page) is appreciated but is not required. Monetization and redistribution are allowed as per the MIT License.

Q: This mod doesn't speed up anything. A: The effect may not be noticeable on high-end PCs. This mod is designed primarily for low-end devices. Nevertheless, there is a video.

Q: How to force-load chunks if the spawn chunks have been removed? A: If you really need to force-load chunks, load individual chunks with the /forceload command in 1.13 or newer. For older versions, you can search for some mod that force-loads chunks.

Q: It says Ksyxis: No Mixin found. A: If you're using Forge 1.15.2 or older, you may need to install MixinBootstrap, MixinBooter, UniMixins, or any other Mixin provider of your choice. If you're using Forge 1.16 or newer, or any version of Fabric/NeoForge/Quilt/Ornithe, you don't need to install anything, and this is a bug.

Be sure to check out the Developer FAQ for the FAQ about this mod's inner workings.

License

This project is provided under the MIT License. Check out LICENSE for more information.

Credits

This mod is developed primarily by VidTu, but it wouldn't be possible without contributors and some technologies used.

Development

Check out the Dev's Corner.

Highlights

From source data

Game versions

Supports 78 Minecraft versions, the newest being 26.4-snapshot-3.

Loaders

Runs on Fabric, Forge, Legacy-fabric, NeoForge, Ornithe and Quilt.

Footprint

Rated a light load on a server.

Ksyxis on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side
Required on the server
Server type needed
Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.4.6, released 2026-10-08

Game versions by loader

LoaderGame versionsNewest
Fabric1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3
Forge1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3
Legacy-fabric1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3
NeoForge1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3
Ornithe1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3
Quilt1.8 to 26.4-snapshot-3 (78 versions)26.4-snapshot-3

From 6 recorded builds of Ksyxis.

Recent builds

BuildReleasedGame versionsLoaders
1.4.62026-10-081.8 to 26.4-snapshot-3 (78 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
1.4.52026-09-251.8 to 26.3 (2 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
1.4.42026-09-151.8 to 26.3 (2 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
1.4.32026-04-241.8 to 26.3 (2 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
1.4.22026-04-191.8 to 26.3 (2 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt
1.4.12026-04-191.8 to 26.3 (2 versions)Fabric, Forge, Legacy-fabric, NeoForge, Ornithe, Quilt

Run Ksyxis on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Runs on your server

From source side support

Modrinth lists Ksyxis as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
FabricForgeLegacy-fabricNeoForgeOrnitheQuilt
Runs on
Serverrequired on the server
Game versions
26.4-snapshot-3 and 77 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-09Open ↗
  • ✓AuthorVidTu, as published on Modrinth
  • ✓LicenseMITFree

Ksyxis, answered

Generated from the mod’s own source data.

Do my players need to install Ksyxis?

Modrinth lists Ksyxis as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Fabric, Forge, Legacy-fabric, NeoForge, Ornithe and Quilt.

Is it free?

Yes. Ksyxis is free to download from Modrinth. Its license is MIT.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Ksyxis on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add Ksyxis in one click.