Done you with Minecraft was more extreme, more mobs, more hell. Well now you cane, you can now have double the mobs. (That's not a joke, its double the mobs)
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Changelog
Fixed a spelling error on the page.
doubled both the minimum and maximum spawn size of mobs instead of just maximum.
the addon now effects goats, frogs, axolotls, glow squids, and all kinds of fish.
Changed the link to download the addon.