This guide provides a straightforward method for constructing a highly effective mob farm in Minecraft. A well-designed mob farm is crucial for efficient resource gathering and XP farming.
Step 1: Gathering Resources
Begin by collecting a substantial quantity of building blocks. Cobblestone and wood are readily accessible and ideal choices.
Step 2: Ideal Location Selection
Construct your farm high in the sky above a body of water. This prevents ground-level mob spawning and ensures mobs spawn exclusively within your farm's confines. Build a small platform approximately 100 blocks above the water, adding ladders for easy access. Place a chest and connect four hoppers to it, as shown in the image below.

Step 3: Constructing the Main Tower
Build a 4x4 tower around the hoppers, extending it 21 blocks high for XP farming or 22 blocks for an automated farm. Place slabs atop the hoppers.
Step 4: Creating Water Trenches
Construct four 7-block long, 2-block wide bridges extending from the tower. Build 2-block high walls around each bridge, then place two water blocks at the end of each bridge to create a water-filled trench.

Step 5: Completing the Structure
Connect the water trenches to form a large square, ensuring 2-block high walls to prevent mob spawning outside the designated area. Fill in the structure, creating walls, floor, and roof.

Step 6: Preventing Rooftop Spawning
Place torches or slabs on the roof to prevent mob spawning there.

Efficiency Enhancements:
- Nether Portal Integration: Connect a Nether portal for easier access.
- XP/Auto-Farming Toggle: Use pistons and a lever to easily switch between 21-block (XP) and 22-block (auto-farming) configurations.
- Increased Spawn Rates with Beds: Place a bed nearby to boost mob spawn rates.
- Spider Prevention with Carpets: Place carpets with one block spacing to prevent spider spawning and clogging.

This comprehensive guide will enable you to build a highly efficient and effective mob farm in your Minecraft world. Enjoy the rewards!
Minecraft is available on PlayStation, Xbox, Nintendo Switch, PC, and mobile.