No Superflat Slimes

No Superflat Slimes

A simple standalone mod to stop slimes from spawning in Superflat worlds

by
26 Downloads
forgeutility
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About this Mod

No Slime Superflat

No Slime Superflat is a simple utility mod for Minecraft 1.12.2 that prevents slimes from spawning in Superflat world

Features

  • Slime Prevention: Automatically stops slimes from spawning in worlds detected as "Superflat".
  • In-game Configuration: You can enable or disable the mod's functionality through the config menu without restarting the game.
  • Custom Blacklist: Adds an option to include other entity IDs that you want to block from spawning in Superflat worlds.
  • Basic Statistics: Includes a command (/noslimesuperflat stats) to see how many spawns have been prevented in the current session.

Technical Details

  • Standalone: This mod does not require Collective or any other library to function.
  • Logic: The mod checks the world type and entity type before canceling a spawn event. It includes a basic internal timer to limit how often it checks the world type.

How to Use

  1. Install the mod in your mods folder.
  2. Start the game. Slimes will no longer spawn in Superflat worlds by default.
  3. Use /noslimesuperflat reload if you manually edit the configuration file.

Compatibility

  • Minecraft Version: 1.12.2
  • Forge: Requires a standard Forge installation for 1.12.2.
  • Works on both single-player clients and dedicated servers.

Available Versions

No Superflat Slimes 1.2.1release
MC 1.12.2forge
May 29, 2026
No Superflat Slimes 1.2.0release
MC 1.12.2forge
May 29, 2026

How to Install No Superflat Slimes on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).

3

Install Mod

Open the mod browser in the dashboard and search for "No Superflat Slimes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.12.2

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

No Superflat Slimes server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.12.2). You can switch loaders with one click in the panel.

Is No Superflat Slimes compatible with forge?

No Superflat Slimes officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with No Superflat Slimes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if No Superflat Slimes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install No Superflat Slimes with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
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Details

License
MIT License
Server-side
Required

Supported Versions

1.12.2