Piglins are neutral mobs found in the Nether dimension of the game Minecraft. They resemble humanoid pigs and are known for their distinctive golden armor. Piglins are primarily found in crimson forests and bastions, where they roam in groups. When players wear any piece of gold armor, Piglins will not attack them. They are also known for their unique trading system, where players can barter with them using gold ingots to receive various items, including obsidian and arrows. If a player is not wearing gold armor, Piglins will become hostile.