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Standard SkyBlock

This data pack generates a standard skyblock island at the world spawn point upon initial world load. A nether island is also created.

The worldgen data pack infinitely generates a void world with properties akin to the original SkyBlock. This means all structures (that matter) will generate with their bounding boxes, but no blocks. These structures will generate at the same location as if the world with the same seed was generated with normal terrain. The only blocks that generate apart from the starter islands are End portals and sculk sensors.

Starter Island

This island will generate with 54 dirt, 26 grass blocks, 1 bedrock (at world spawn), an oak tree, and a chest with an ice block and bucket of lava.

Nether Island

The nether island will generate with 40 netherrack, 7 crimson nylium, 7 warped nylium, 2 soul sand, 2 nether wart, and 14 obsidian for the portal.

Structures

Structure bounding boxes that are important in SkyBlock will generate at the same coordinates along with some entities as they would in a normal world with the same seed:

• Ancient Cities will generate the same bounding boxes and sculk shriekers that can spawn wardens (location of shriekers won't match with a normal world)
• Ocean Monuments will generate the same bounding box, but no elder guardians (guardians farms can be built as normal)
• Pillager Outposts will generate the same bounding box with any allays that normally generate
• Strongholds will only generate an entrance end portal with some filled eyes (though it won't match with a normal world with the same seed)
• Witch Huts will generate the same bounding box (witch farms can be built as normal)
• Mansions will generate any allays that would generate in a normal world
• Nether Fortresses will generate the same bounding box
• End Cities will generate any shulkers and ships that would generate in a normal world
• Trial Chambers will generate the same bounding box

The End Dimension

In the end dimension, the obsidian pillars and the exit end portal generate as normal. When a player goes through an end gateway, a small end island will still generate, but the rest of the outer end islands will not.

Advancements

It's highly recommended to download the companion SkyBlock Advancements data pack to improve the advancement interface. This pack rearranges the main advancement tab to be better suited for SkyBlock instead of vanilla Minecraft.

Unobtainable Items

Some items are unobtainable with just this simple world generation. I made an expansion pack that adds mechanics that allow all items, mobs, and advancements to be obtained. Download Sky Void Additions to expand the possibilities.

Other Void Worldgen Packs

My SkyBlock Collection has additional options for how the void world generates. Most notably there are other presets that have the stronghold generate with the pit of lava beneath the end portal, or the entire portal room. There is also a preset that removes all blocks and entities, leaving only a biome map with structure bounding boxes.