ClockStopper
A fabric mod that stops the game's tick cycle when no players are online.
Fabric
- Loaders
- Fabric
- Downloads on Modrinth
- 303
- Followers on Modrinth
- 1
- versions
- 2
- Updated
- February 10, 2026Feb 10
- Published
- in 2024
At a glance
Runs on Fabric
For Minecraft 1.21.1, 1.21.11
Server only — players don't need to install it
Latest version — 1.0.1 from February 10, 2026
License MIT — free
Where it's neededGame versions1.21.1, 1.21.11
In gamenot neededOn serverrequired
Install on the server only; players don't need it
A fabric mod that stops the game's tick cycle when no players are online. This allows the server to use practically zero system resources when no players are online.
Pros
- Less server-side CPU usage when no players are online
Cons
- Farms will not run and crops will not grow when no players are online, even in the spawn chunks.
NOTE: This mod will ONLY load on DEDICATED SERVERS. This mod will not be loaded on the client.
FAQ
How to install ClockStopper?
Install Fabric for your Minecraft version, download ClockStopper for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does ClockStopper support?
ClockStopper has builds for Minecraft 1.21.1, 1.21.11.
Is ClockStopper needed on the server?
Server only — players don't need to install it
License and source
MIT Licensefree to use and share with credit to the author
