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Zombies Slow You

by Mnap

Zombies Slow You changes how zombies hit and move: a hit from a zombie slows the player, and jumping is restricted, in the way a grapple limits movement.

FabricForgeNeoForgeQuiltServer required, client optionalAll rights reserved1.20 – 1.21.8

What it does

When a zombie hits a player, the hit applies a slowing effect, and the player's ability to jump is held back while it lasts. The behavior is implemented with a data pack function that runs on each zombie hit, so it can be adjusted or removed by editing the function file that ships with the mod.

The mod is listed for Fabric, Forge, NeoForge and Quilt, and it is also available as a data pack. Files cover 11 release versions, 1.20 – 1.21.8, with the same build 1.1.1+mod for 1.21.8 as the latest on every loader. The server must run the mod, while players may leave it out and still join.

Versions 1.21 and above and versions below 1.21 use different mechanics for jump strength and jump boost, so the effect is not identical across the whole range. The mod is released under All rights reserved and is not open source.

Key features

  1. Hit slowdown

    A zombie hit reduces the player's movement speed for a short time, adding a cost to each encounter.

  2. Jump restriction

    Jumping is limited after a zombie hit, which makes escape routes and pillar tactics harder to use.

  3. Data pack function

    The effect runs through a zombie hit function in the data pack, so the behavior can be edited without a code change.

  4. Version-split mechanics

    Jump strength and jump boost are handled differently above and below 1.21, so the effect depends on the game version.

Compatibility

Latest build for each game version and loader.

1.21.x9 of 9 versions with builds
1.21.81.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.71.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.61.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.51.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.41.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.31.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.21.1.1+mod1.1.1+mod1.1.1+mod1.1.1+mod
1.21.11.1+mod1.1+mod1.1+mod1.1+mod
1.211.1+mod1.1+mod1.1+mod1.1+mod
1.20.x2 of 2 versions with builds
1.20.11.0+mod1.0+mod1.0+mod1.0+mod
1.201.0+mod1.0+mod1.0+mod1.0+mod
ReleaseBetaAlphaNot available

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

Use cases

Harder zombie survival

Servers that want zombies to be more dangerous in survival can run the mod so every hit carries a movement penalty.

Who it’s for: Server owners who want zombies to carry a movement penalty, and players on those servers who want to know why escape is harder. Players on a server running the mod do not need to install anything.

Questions

Does a player need Zombies Slow You installed?

No. The server runs the mod, and players may join without it, because the client side is optional.

Which loaders does Zombies Slow You support?

Files are published for Fabric, Forge, NeoForge and Quilt, and a data pack version is also available.

Is the zombie slowdown the same in every game version?

No. Versions 1.21 and above and versions below 1.21 use different jump strength and jump boost handling, so the effect differs between them.

In the catalog

Zombies Slow You is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 17,695 mods support Minecraft 1.21.8.

Similar mods

What the author says

If you don't like these values, you can configure it by going to - _1.21+: zombies_slow/data/zombies_slow/function/zombie_hit.mcfunction_ - _Below 1.21: zombies_slow/data/zombies_slow/functions/zombie_hit.mcfunction_
Mnap, on the Modrinth page

Official listing

Owner
Mnap
Published
2025-07-20
Updated on Modrinth
2025-07-27
Facts verified
2026-10-15

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