Superflat World No Slimes Mod (1.21.11) – Slime-Free Superflat Worlds

Superflat builds are easier to manage when slimes stop taking over the world. Superflat World No Slimes Mod is built for that exact problem, preventing slime spawns entirely in superflat worlds while leaving other mob spawns unchanged. For players who use superflat for creative projects, testing, or clean survival setups, that makes its purpose clear and practical.

Key Features

  • Stops slime spawns in superflat worlds, targeting one of the most common annoyances in that world type.
  • Leaves other mob spawns intact instead of changing overall spawning behavior.
  • Uses a simple installation approach described by the author as drag-and-drop friendly.
  • Published by Serilum and supported by an active Modrinth project with over 3.2 million downloads.

Screenshots

Superflat World No Slimes Mod screenshot 1 showing mod in action
Superflat World No Slimes Mod screenshot 2 showing mod in action
Superflat World No Slimes Mod screenshot 3 showing mod in action
Superflat World No Slimes Mod screenshot 4 showing mod in action

How to Install

  1. Choose the correct file for your Minecraft version and loader.
  2. Install the matching loader: Forge, NeoForge, Fabric, or Quilt, depending on the version you plan to use.
  3. If your setup requires it, install the listed dependency before adding the mod file.
  4. Place the mod in your Minecraft mods folder and launch the game with the same loader profile.

Requirements

Requirement Details
Mod Loader NeoForge, Forge, Fabric, Quilt
Dependencies Collective Lib, Fabric API, Minecraft Forge, Neoforge Installer, Fabric Modloader, Quilt Installer
Minecraft Version 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21, 1.20.6, 1.20.4, 1.20.2, 1.20.1, 1.20, 1.19.4, 1.19.2, 1.18.2, 1.16.5

Pros & Cons

Pros

  • Directly solves slime spawns in superflat worlds.
  • Does not remove other mob spawns.
  • Available across multiple Minecraft versions and loaders.
  • Backed by a clearly maintained Modrinth listing and source page.

Cons

  • Its scope is very narrow and only addresses superflat slime spawning.
  • Some setups may need an additional dependency such as Collective Lib or Fabric API.
  • Download entries in available information are listed only through Minecraft 1.20.6.

Download

Minecraft VersionLoaderDownload Links
For Minecraft 1.16.5
Forge

For Minecraft 1.16.5
Fabric

For Minecraft 1.18.2
Forge

For Minecraft 1.19.2
Forge

For Minecraft 1.19.4
Forge

For Minecraft 1.20.1, 1.20
Forge

For Minecraft 1.20.2
Forge

For Minecraft 1.20.4
Forge

For Minecraft 1.20.6
Forge

For Minecraft 1.21.1, 1.21
Forge

For Minecraft 1.21.3
Neoforge

For Minecraft 1.21.4
Forge

For Minecraft 1.21.5
Forge

For Minecraft 1.21.6
Forge

For Minecraft 1.21.8, 1.21.7
Forge

For Minecraft 1.21.9
Forge

For Minecraft 1.21.10
Forge

For Minecraft 1.21.11
Forge

Always download mods from official sources to stay safe.

What's New

  • Updated to Minecraft version 26.1.
  • Modrinth project data was updated on 2026-03-25.
  • The project remains available on Modrinth under Serilum's listing.
  • Source code continues to be published on GitHub.

FAQ

What does Superflat World No Slimes Mod actually change?

It prevents slime spawns entirely in superflat worlds while leaving other mob spawns unchanged.

Which loaders does Superflat World No Slimes Mod support?

Available information lists NeoForge, Forge, Fabric, and Quilt as supported mod types, with dependencies such as Collective Lib and Fabric API depending on the setup.

Is this mod still maintained?

The Modrinth listing shows it was first published on 2022-08-31 and updated on 2026-03-25, which indicates the project is still receiving updates.

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