Decreased Zombie Speed
by HayeSPC
Decreased Zombie Speed slows baby zombies that come within 15 blocks of a player, so a close encounter is easier to handle in survival.
What it does
When a baby zombie approaches a player within a 15-block radius, its movement speed drops by 35 percent. The change uses the game's native entity attributes, so no new mob behavior is introduced, and it applies only while the zombie is near a player. The mod is a lightweight balance change for the most frustrating parts of vanilla zombie encounters. It is a server-side only mod for Fabric, with files for 1.21.1 and MIT License terms, though the code is not open source.
Key features
Baby zombie slowdown
Baby zombies within 15 blocks of a player move 35 percent slower, easing close fights.
Native entity attributes
The speed change is applied through the game's own entity attributes rather than custom AI.
Lightweight balance change
The mod targets one frustrating vanilla situation and leaves the rest of zombie behavior untouched.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Baby Zombie Removal is an MIT-licensed, open source server-side mod for Fabric 1.21.8, which removes baby zombies rather than slowing them. Zombie Enhanced is a server-side Fabric mod for 1.21.1 under All rights reserved, and changes zombies in a different way.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Decreased Zombie Speed | Fabric | 1.21.1 | Server-side only | 2026-08-24 |
| Baby Zombie Removal | Fabric | 1.21.8 | Server-side only | 2025-08-04 |
| Zombie Enhanced | Fabric | 1.21.1 | Server-side only | 2026-04-24 |
Questions
Does Decreased Zombie Speed need to be installed on clients?
Which loader does Decreased Zombie Speed use?
In the catalog
Decreased Zombie Speed is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from HayeSPC
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What the author says
decreased zombie speed is a lightweight fabric mod designed to balance one of the most frustrating vanilla mechanics When a baby zombie approaches within a 15-block radius of a player, a dynamic speed decrease(35%) is applied to curb their overwhelming mobility,and the mod utilizes native entity attributes to…
Official listing
- Modrinth page
- modrinth.com/mod/decreased-zombie-speed
- Owner
- HayeSPC
- Published
- 2026-08-24
- Updated on Modrinth
- 2026-08-24
- Facts verified
- 2026-10-15