Question 1

How do I import an existing preset?

Accepted Answer

Paste any Superflat string into the Import field at the top of AlaCraft Flat World Generator. AlaCraft automatically detects the format — Modern namespace (minecraft:block_id) or Legacy with numeric IDs — and rebuilds all layers, biome, and structure flags without manual format selection.

Question 2

Why aren't villages spawning?

Accepted Answer

Minecraft Java 1.16+ completely removed structure generation from Superflat preset strings — adding ;village or feature:village has no effect starting from Java 1.16. In Java 1.13–1.15 the legacy string from AlaCraft includes structure flags; make sure the biome supports villages (not Ocean or Mushroom Fields) and that Generate Structures is enabled in world settings.

Question 3

How do I share a preset with a friend?

Accepted Answer

Click 'Share Link' in AlaCraft Flat World Generator — the full world configuration (layers, biome, structure flags, version format) is encoded into the URL via Base64 with no server storage. Anyone opening the link sees the identical preset in the editor, including all layer counts and settings.

Question 4

Which Minecraft versions are supported?

Accepted Answer

AlaCraft Flat World Generator supports three Minecraft preset formats simultaneously: the Modern namespace string (Java 1.13+) for layers and biome, the Legacy structure string (Java 1.13–1.15) with village and mine flags, and Legacy with numeric IDs (≤1.12). AlaCraft shows both the Modern and Legacy strings at the same time — copy whichever matches your server version.

Question 5

What is the maximum world height?

Accepted Answer

In Minecraft Java 1.18+ the flat world Y range is -64..319, total thickness 384 blocks. In Legacy (≤1.12) it is 0..256, total 256 blocks. AlaCraft Flat World Generator shows a real-time warning and blocks preset export if the total layer count exceeds the version limit.