Please read the pinned post on creating new biomes and dimensions. Remember that individual items, mobs, and structures should still go in their own categories - this is not a category for entire updates.

Vote for an existing idea or New post

2votes
Thick forest biome
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Tryx dimension
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'Deep Underground' Zone (Part Two of Two)
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Prairies
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The Underground Dimension
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Sapling Growth Speed Variation
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Tall Oak Trees and Tall Oak Tree Biome
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Icy spikes plains/plants
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Blue Blossom Woods biome
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The esreveR
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Dimension: The lost forest
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Dimension:The Everlands
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Wolvia - The new Minecraft Dimension!
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Diamond dimension
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Lost Vaults Dimension
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End forests
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broken dimension
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Diamond Dimension
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Enchanted Orb/Pocket Dimensions
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illager dimension
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The Cold
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Giant Abbys (abbys biome) + dimension Underworld
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The Start
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Сhange in climatic zones from north to south.
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Ready Player One Dimension
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Virte Dimension (PE)
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Caatinga
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Underground Dimension!
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Update idea: Geographic Update part 1 Above ground
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Iron or Lead Wood Tree