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Sisyphe project artwork

CurseForge · Minecraft mod

Sisyphe

Your server has 12 cores. Minecraft ticks its world on one.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Sisyphe release should I use?

Updated last month
Latest stable file sisyphe-1.0.0.jar
Game version 1.21.1
Loader Fabric

sisyphe-1.0.0.jar targets 1.21.1 with Fabric. 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 Sisyphe required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does sisyphe-1.0.0.jar need?

sisyphe-1.0.0.jar. Change the file and its required mods may change too.

No extra mods listed for this file

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 Sisyphe without breaking your instance.

Built for sisyphe-1.0.0.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use sisyphe-1.0.0.jar. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.

  2. 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.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside sisyphe-1.0.0.jar. It opens that exact file at the source.

About this project

What does Sisyphe add?

Your server has 12 cores. Minecraft ticks its world on one.

Every tick, your server walks through your dimensions one after the other. The Overworld finishes, then the Nether starts, then the End, then every modded dimension your pack adds. All on a single core, while eleven others sit idle.

Sisyphe ticks them all at the same time, one core each.

Sisyphe is the French name of Sisyphus, the man condemned to push his boulder uphill forever. Sisyphe pushes the boulder so your server doesn't.

  • ✅ Server-side only. Your players install nothing. Works in singleplayer too.
  • ✅ It cannot mix your worlds up. Each dimension is ticked by exactly one thread, ever. Cross-dimension teleports are held and replayed on the main thread inside the same tick.
  • ✅ It measures itself. /sisyphe shows how many milliseconds per tick it is actually saving you. Not a promise. Your number, on your server.
  • ✅ One command to switch off. /sisyphe off and the server behaves exactly like vanilla, with the mod still installed.

Project description from CurseForge.

Pick your setup

Sisyphe by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Sisyphe versions and loaders

1 of 1 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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