The goat horn is an item for players who like Minecraft’s small surprises. Use it to play a loud sound. Different horn types make collecting them a project of its own.
How to get a goat horn
A goat can drop a horn when it rams a suitable hard block. Minecraft’s official Java snapshot notes list naturally occurring blocks such as logs, stone, packed ice, and several ores. The goat must actually hit a valid block; simply standing nearby is not enough.
What is it useful for?
Sound a horn for fun, for roleplay, or as a recognizable signal to nearby players. The Wild Update notes say its sound can be heard from afar. It is also an appealing collector’s item because the sounds differ.
A sensible collecting approach
Find a place goats naturally roam, observe their behavior, and make the setting safe for yourself. Avoid assuming that every collision produces a horn. Check your version if the horn or ram behavior differs from a guide you read.
Source: Minecraft’s goat horn snapshot notes.
