How do I install IncreaseSlimeRates?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does IncreaseSlimeRates work with?

The listing gives Minecraft 26.1, 26.1.1, 26.1.2. This is the version stated by the author or source site, not something we verified ourselves.

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DatapacksJava

IncreaseSlimeRates

by nouxinf · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Data pack2 builds
Mod loader Fabric2 builds
Mod loader NeoForge2 builds

Minecraft version

Minecraft 26.1–26.1.2Newest
Minecraft 1.21.11

Minecraft 26.1–26.1.2Newest
Minecraft 1.21.11

Minecraft 26.1–26.1.2Newest
Minecraft 1.21.11

⬇ Download for 26.1–26.1.2 · Data pack ⬇ Download for 1.21.11 · Data pack ⬇ Download for 26.1–26.1.2 · Fabric ⬇ Download for 1.21.11 · Fabric ⬇ Download for 26.1–26.1.2 · NeoForge ⬇ Download for 1.21.11 · NeoForge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

IncreaseSlimeRates

This datapack makes slimes spawn 2.5 times more often in swamps and mangrove swamps. It is not able to change the spawning rates of slimes in slime chunks unfortunately.

Note that because the datapack has to fully override worldgen info for swamps and mangrove swamps, it's best to update the datapack

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 26.1, 26.1.1, 26.1.2
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.

Verified by MCModsHub

Downloads as increaseSlimeRates-1.0-26.1.zip
Download size: 10 KB
Download link checked 10 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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