Building a zombie farm in 'Minecraft' is one of those projects that feels super rewarding once it’s up and running. I’ve messed around with a few designs, and the simplest one involves finding a zombie spawner underground or creating a dark room where zombies can spawn naturally. You’ll want to funnel them using water channels or trapdoors into a killing chamber. I prefer using fall damage to weaken them—just drop them 23 blocks, and they’ll be left with half a heart. Then, you can finish them off manually or with a trident killer for automatic loot.
For efficiency, make sure to light up nearby caves to prevent other mobs from spawning and stealing your zombie spawns. Adding a sorting system for rotten flesh and other drops can be a fun extra step if you’re into redstone. The first time I saw a pile of zombie loot just accumulating without me lifting a finger, it felt like magic.