How to get the unicorn biome in Terraria
To get unicorns spawning in Terraria, you gotta create or find the Hallowed biome first. Unicorns are one of those magical creatures that pop up in Hallowed areas. To make a place all Hallowed and sparkly, use Hallowed Seeds, Holy Water, or Blue Solution with the Clentaminator. Spread it around the area you want to turn into a unicorn paradise. Remember, these majestic beasts start appearing once you've entered Hardmode, so make sure you've defeated the Wall of Flesh boss to unlock this phase of the game.
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Just beat the Wall of Flesh and spread the Hallow. Unicorns will start showing up.
Unicorns in Terraria? Just make sure you're in hardmode and have a nice chunk of Hallow land. They'll show up wanting to be your friend... or to attack you. Either way, unicorns!
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