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The Island World

Your island has no fixed upgrade levels. Instead, the world grows as you explore: wherever you fly or build, new islands appear – with caves, ores, villages, ruins and residents.

A main island with side islands and vine staircases

A main island with its side islands, linked by vine staircases

What How
Grid The world is divided into cells of 220 × 220 blocks. Each cell has one main island, slightly offset and at different heights
Side islands 2–3 small side islands lie around every main island
Vine staircases A small stepping-stone island with a staircase of leaves and vines leads to the nearest side islands – you get across without building
Gap fillers More small islands fill large gaps between the island groups
Ships in the void Airships, balloons and planes hang between the groups
Starting island In the middle, with four side islands about 100 blocks away. Your first resident lives on one of them

New islands appear when you get close to them – the ones in the direction you’re looking first. Once something has been generated, it stays. Anyone who only watches on someone else’s island or shops there as a customer doesn’t make new islands appear there.

A balloon at sunset over a badlands island

Balloons and airships hang between the islands

Islands of the same biome lie in areas of about 3 × 3 cells – around 660 blocks across, usually about nine main islands. You fly through a desert area, then through a forest area.

  • About one island in three is a patch of another of your biomes.
  • The area around your starting island always has your starting biome.
  • Only biomes your island owns are generated. You buy new ones in the skill tree.
  • A freshly bought biome is guaranteed to appear in the next new area. After that it’s down to chance – your favourites appear three times as often.
  • An explored area keeps its biome, even if you buy new ones later.

Every main island has a cave system with one to three entrances from above: chambers on up to two levels, passages with loops, a large hall and sometimes a pool. Each chamber has its own style – lush, dripstone, ice, mushrooms, magma or plain rock. Rarely you’ll find an amethyst geode. On the cave floor, most likely in such a geode, there’s sometimes a Budding Mana Amethyst – see Furnace Golem & Mana Geode.

The caves are partly lit. Side islands, stepping-stone islands and the starting island have no cave.

Ore lies in small clusters of one to four blocks throughout the rock, and on its own along the cave walls – where two ores touch at most diagonally. The deeper, the more. You can’t see the clusters in the rock – you have to dig. No island shows any ore from the outside.

Island Ore, roughly
Main island around 330 ore blocks, about 11 of them diamonds and 90 iron ore; around 200 of them sit visibly on the cave walls
Side island around 16 ore blocks
Starting island none

Iron is as common as coal – in every biome.

On top of that there’s Mana ore with its pink veins – 4 to 14 blocks in the caves of every main island.

With a bit of luck you’ll find on an island:

  • Villages – from a single house to a small town, with villagers
  • Ruins
  • Pillager outposts
  • Standalone buildings away from the villages
  • Floating structures above the island – about one main island in eleven has one

Side islands have at most one small structure. On top of that there are the houses and camps of the AI residents.

A desert house with cacti

A village in the desert

An old statue in the forest

An old statue in the forest

  • Every container in a structure is filled the first time you open it – chests, barrels, decorated pots and shelves in houses.
  • Some islands have suspicious sand or gravel on the surface, at most three per island. Use a brush to uncover the loot.
  • The loot also includes Warpett eggs.

Which animals live on an island depends on the biome – mooshrooms in the Mushroom Fields, horses and armadillos in the savanna, pandas in the Bamboo Jungle, goats in the mountains, frogs in the swamp.

  • The bigger the island, the more animals: one per 250 walkable blocks, at most 16. A main island usually has three or four species.
  • Animals come back. If an island near you has been eaten empty, it’s full again after a few minutes.
  • Predators and prey never live on the same island – an island with wolves has no sheep.

Monsters spawn in the dark as usual, but far fewer than in normal Minecraft: at most 15 at a time per player. Killed ones are replaced.

Below height 0 you die instantly. You keep your inventory and levels and only lose a little Mana. You wake up in your bed – or on the deck of your airship if you don’t have one.