Slimes in Minecraft are found exclusively below Y=40 in the overworld and come in three sizes: large, medium, and small. Defeating them yields experience points—4 XP from large slimes, 2 from medium, and 1 from small. A large slime splits into smaller versions upon defeat, allowing players to accumulate approximately 24 XP from one encounter. Defeating slimes also provides slimeballs, which are essential for crafting items like leads, sticky pistons, and slime blocks. To build a slime farm, players must locate a slime chunk, dig down to Y-level 20–40, clear a 16x16 block area, create spawning platforms, add iron golems to attract slimes, build an auto-kill mechanism, and install a collection system with hoppers and minecarts. Proper lighting is necessary to prevent unwanted mob spawns.