ModsFinder

RelativityTick

by Abelian_2E47

RelativityTick lets players set a separate tick rate for chosen regions of the world, so parts of a Minecraft world can run faster, slower or frozen while the rest advances normally.

FabricClient and serverMIT License1.21 – 1.21.11

What it does

A region is made of one or more chunks that the player selects in-game. Each region can be frozen, stepped one tick at a time, or run at a custom rate that sets how many ticks the region tries to process per second. Pausing can be applied to a region's entities, its block entities, its random updates or its scheduled updates, separately or together. Regions are useful when debugging redstone farms or watching entity behavior without the rest of the world changing.

Regions are created with a selection mode. Pressing an assignable key that is unbound by default toggles chunk selection, and left-clicking chunks adds them to the selection, which is shown with boundary lines. A region ID must be unique, and releasing a region is done by typing the region command while inside it, which returns that area to normal world ticking. The mod also shows region status, including TPS, running rate and tick processing time, and lets the player set a maximum tick processing time per region.

Key features

  1. Region tick rates

    Each region can run at a custom rate, so areas of a world can speed up or slow down relative to the rest.

  2. Freezing and stepping

    A region can be frozen completely or advanced one tick at a time, which suits close inspection of machines.

  3. Selective tick pausing

    Entities, block entities, random updates and scheduled updates can each be paused inside a selected region.

  4. Chunk selection tools

    A selection mode and a configurable key let players pick chunks with left-clicks, with boundary lines showing the selection.

  5. Region status display

    Status shows each region's TPS, running rate and tick processing time, and a maximum processing time can be set per region.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.111.0.1
1.21.81.0.1
1.21.41.0.1
1.21.11.0.1
1.211.0.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Does RelativityTick need to be installed on the server?

Yes. Every player and the server need a copy of the mod.

Which loader does RelativityTick use?

RelativityTick is published for Fabric only, and it has no Forge or NeoForge files.

Which game versions does RelativityTick support?

Files cover 1.21 – 1.21.11 across five release versions: 1.21, 1.21.1, 1.21.4, 1.21.8 and 1.21.11.

How is a region created?

A region is created by selecting chunks with the selection key, or by running the region command in a selection. A region ID must be unique.

In the catalog

RelativityTick is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.

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What the author says

RelativityTick is a Fabric mod that allows you to control the game tick rate of selected regions, with each region consisting of one or more Minecraft chunks. You can freeze regions, advance them tick by tick, run them at a custom rate, and give different regions independent time progression. In-game, assign a key to…
Abelian_2E47, on the Modrinth page

Official listing

Owner
Abelian_2E47
Published
2026-08-05
Updated on Modrinth
2026-09-13
Facts verified
2026-10-15

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