How do you make mob spawners
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So I'm watching youtube video's and people have mob spawns around. How do you make them?
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A more precise answer:
They either used a map editor to place spawn blocks, or they built around a spawn block that had been randomly generated in the world.
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It's possible to place them.
If you use INVedit, which is an inventory editor. You can download this software at the Minecraft Forums. Warning: this block actually is just a block, it doesn't actually spawn stuff. And once you place it, you can't pick it back up.
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MCEdit.
MCEdit lets you edit the world around you, including adding mob spawners.
WoM Coins: 42
Without using 3rd party tools to hack mob spawners in, there is not way to make them. Even then, all they ever spawn is pigs.