How to Build a Minecraft Slime Farm

Do you want to get tons of slimeballs without having to hunt for slimes in swamps or caves? Well, you’re in luck. This post is all about how to build a slime farm in Minecraft 1.19+!

What are slimes

In Minecraft, slimes are aggressive creatures that come in different sizes and possess the unique ability to drop slimeballs.

These slimeballs are valuable resources used in the creation of various items and blocks like slime blocks, magma cream, leads, and sticky pistons.

Unlike other hostile mobs, slimes spawn regardless of light levels as long as they are within slime chunks and below layer 40 in the Overworld. They can also spawn in Swamp biomes in light levels of 7 or less between layers 51 and 69.

A slime needs roughly a 3×2.1×3 free space to spawn, and the spawning area should be free from solid or liquid obstruction.

How to Find Slimes?

To build a slime farm, you need to find a slime chunk. A slime chunk is a 16×16 area where slimes can spawn up to Y=39.

To locate slime chunks in Minecraft, you can either explore your world or use seed analysis.

Exploration can be time-consuming as you must explore underground caves and mineshafts within swamp biomes until you stumble upon a slime.

Finding a slime confirms that you are in a slime chunk. Once discovered, you can mark the location and return to the surface to construct your farm.

Seed Analysis is the easier method to find slime chunks. Each Minecraft world is associated with a seed, a unique string of characters that determines terrain generation and other world aspects.

You can use online tools like Chunkbase or Amidst to analyze the seed and identify slime chunks’ location even before beginning your gameplay.

What is a Slime Farm?

A slime farm is a structure that allows you to spawn and kill slimes and collect their slimeballs automatically.

How to Build a Minecraft Slime Farm?

To build a slime farm in Minecraft, follow these steps:

Find a Slime Chunk

Slime farms work best in slime chunks, which are specific chunks of the world where slimes spawn more frequently. You can use the exploration or seed analysis methods mentioned earlier to locate slime chunks.

Clear the Area

Once you’ve identified a slime chunk, clear out a large, flat area within the chunk. Remove any blocks above ground level and ensure there are no caves or other dark areas nearby where slimes could spawn instead of your farm.


Make sure to light up the surrounding area to prevent other mob spawns.

Platform Construction

Build a spawning platform where slimes can spawn and be easily killed. Slimes spawn on solid blocks below level Y=40, so create a flat platform at this height. Ensure the platform is at least three blocks high to allow larger slime variants to spawn.

Killing Mechanism

Design a system to kill the spawned slimes efficiently. You can use various methods to damage and eliminate the slimes, such as water currents, magma blocks, or pistons.

Farm Collection

Set up a way to collect the slimeballs from the farm. Water currents can guide the slimeballs into a central collection point or a hopper system that automatically gathers them.

AFK Spot and Mob Cap Management

You’ll need to optimize the spawning rates for efficient slime farming. Stay within the farm’s vicinity to ensure slimes continue to spawn and despawn naturally. Keep in mind the Minecraft mob cap, which limits the number of mobs that can be present in a loaded area. If there are other mobs nearby, such as in caves or on the surface, they can reduce the slime spawn rates.

Redstone Mechanisms and Automation (Optional)

You can incorporate redstone mechanisms to automate various aspects of your slime farm, such as killing the slimes or collecting the slimeballs. This step is more advanced and can enhance the efficiency and convenience of your farm.

That’s it! You have built a slime farm! Now you can afk near the farm, watch as slimes spawn and die, and collect their slimeballs from a chest connected to the hopper.