# Yakanstone

*6K, 1.21.5+, Sleeping Volcano & The Badland Hills · Download, survival friendly, Java, Overworld World*

A 36km² custom Minecraft Survival Map, created by McMeddon.
A grand y shaped continent, with a giant hills and a volcano at the core, shaped by towering hills and the badlands forest surrounding it.

Another world with further progress the biomes and general world composition.

## Details

- Creator: McMeddon
- Type: Survival world
- World size: 6144 x 6144 blocks (6K)
- Elevation range: -64 to 320 blocks
- Spawn point: X 3072, Y 88, Z 3072
- Playable version: 1.21.5+
- Survival friendly: Yes. Confirmed by the scan: loot tables, structures, animals, ores present in the save. Plays in vanilla Minecraft with no mods or datapacks
- Editions: Java, Bedrock
- Made of: Grassland 26%, Forest 23%, Shore 18%, Arid 14%, Cold 10%, Wetland 6%, Cave 2%, Mushroom 0.3%
- Beyond the border: Vanilla chunks
- Published: 2026-04-09

## Biomes

Shares are measured across the built map. Past its edge the world keeps generating normal vanilla Minecraft chunks, so biomes missing from this list can still be found out there.

36 biomes. Land 44%, Water 55%.

Made of: Grassland 26%, Forest 23%, Shore 18%, Arid 14%, Cold 10%, Wetland 6%, Cave 2%, Mushroom 0.3%.

### Land (44% of the map, 25 biomes)

- Plains: 22% of land
- Stony Shore: 10% of land
- Beach: 9% of land
- Wooded Badlands: 7% of land
- Taiga: 6% of land
- Meadow: 5% of land
- Savanna: 4% of land
- Dark Forest: 4% of land
- Desert: 3% of land
- Snowy Slopes: 3% of land
- Mangrove Swamp: 3% of land
- Snowy Taiga: 3% of land
- Forest: 3% of land
- Birch Forest: 3% of land
- Swamp: 3% of land
- Snowy Plains: 2% of land
- Jagged Peaks: 2% of land
- Jungle: 2% of land
- Flower Forest: 2% of land
- Pale Garden: 1% of land
- Old Growth Pine Taiga: 1% of land
- Sparse Jungle: 1% of land
- Cherry Grove: 0.5% of land
- Mushroom Fields: 0.3% of land
- Frozen Peaks: 0.1% of land

### Water (55% of the map, 8 biomes)

- Ocean: 38% of water
- Cold Ocean: 25% of water
- Lukewarm Ocean: 22% of water
- Warm Ocean: 7% of water
- River: 5% of water
- Deep Ocean: 2% of water
- Frozen Ocean: 1% of water
- Frozen River: 0.2% of water

## Caves

Open cave reaches 22% of this world below sea level. What those caves are made of, by volume, measured from the save in 4 block cells:

Shares are measured across the built map. Past its edge the world keeps generating normal vanilla Minecraft chunks, so biomes missing from this list can still be found out there.

- Normal Caves: 96%
- Lush Caves: 2%
- Deep Dark: 0.9%
- Magma Caves: 0.8% (inferred from surrounding blocks)
- Dripstone Caves: 0.3%
- Ice Caves: 0.1% (inferred from surrounding blocks)

Inferred types have no biome of their own in Minecraft. They are named from the blocks around the cave rather than read from the save.

## Structures

13 of 19 confirmed present. A pinned marker outranks the scan; anything not confirmed is what the scan alone recorded.

Counted inside the built map. Past its edge the world keeps generating normal vanilla Minecraft chunks, so structures not confirmed here can still generate out there.

### Surface (4 of 7)

- Desert pyramids: Included
- Igloos: Not checked
- Jungle pyramids: Not checked
- Pillager outposts: Included
- Swamp huts: Included
- Trail ruins: Included
- Woodland mansions: Not checked

### Underground (4 of 6)

- Amethyst geodes: Included
- Ancient cities: Missing
- Dungeons / monster rooms: Included
- Mineshafts: Included
- Strongholds: Included
- Trial chambers: Missing

### Ocean (3 of 4)

- Buried treasure: Searched, not found
- Ocean monuments: Included
- Ocean ruins: Included
- Shipwrecks: Included

### Portal structures (1 of 1)

- Ruined portals: Included

### Settlements (1 of 1)

- Villages: Included

## Loot tables

28 of 37 confirmed present. Confirmed means the scan read the table out of the save. Not observed means the structure carrying it was not seen in this export, not that the table is impossible here.

Counted inside the built map. Past its edge the world keeps generating normal vanilla Minecraft chunks, so tables not seen here can still turn up out there.

### Chest loot (13 of 20)

- Abandoned mineshaft: Included
- Buried treasure chest: Not observed
- Desert pyramid: Included
- End City treasure: Not observed
- Igloo chest: Not observed
- Jungle temple: Included
- Jungle temple dispenser: Not observed
- Nether fortress bridge: Not observed
- Pillager outpost: Not observed
- Shipwreck map: Included
- Shipwreck supply: Included
- Shipwreck treasure: Included
- Simple dungeon: Included
- Spawn bonus chest: Included
- Stronghold corridor: Included
- Stronghold crossing: Included
- Stronghold library: Included
- Underwater ruin (big): Included
- Underwater ruin (small): Included
- Woodland mansion: Not observed

### Village chest loot (14 of 15)

- Village armorer: Included
- Village butcher: Not observed
- Village cartographer: Included
- Village desert house: Included
- Village fisher: Included
- Village fletcher: Included
- Village mason: Included
- Village plains house: Included
- Village savanna house: Included
- Village snowy house: Included
- Village taiga house: Included
- Village tannery: Included
- Village temple: Included
- Village toolsmith: Included
- Village weaponsmith: Included

### Archaeology (1 of 1)

- Archaeology loot: Included

### Structure loot (0 of 1)

- Trial chamber loot: Not observed

## What is inside

- Biomes: yes
- Structures: yes
- Ores: yes
- Plants: yes
- Animals: yes
- Loot: yes
- Caves: yes

Outside the built map the world keeps generating normal vanilla Minecraft chunks, so anything missing here can still be found out there.

## What is new

- dark oak forest additional dedicated subbiome added
- birch forest additional dedicated subbiome added
- oak forest additional dedicated subbiome added
- oak forest biome mask error fixed
- spruce forest additional dedicated subbiome added
- wooded badlands subbiome added
- added mega birch POI trees
- added tall grass plains subbiome
- sub biome with dried grass is now a meadow called golden meadow
- fixed error: small pale oak trees can now despawn
- refactored terrain mixer
- refactored terrain mountain collection
- added manual global snow selection method
- sharpened coastal edges
- removed a master erosion layer
- removed mountain alpine edge textures
- drastically reduced minimum meander river travel length needed for this map

## Questions about this world

### What is Yakanstone?

Yakanstone is a hand-made survival world of 6,144 × 6,144 blocks, made with WorldPainter, World Machine, Gaea, Axiom and WorldEdit, built for Minecraft Java 1.21.5. You download the world folder and play it like any other save, in singleplayer or on your own server.

### How big is Yakanstone?

6,144 × 6,144 blocks, so about 38 million blocks of surface. Walking from one edge to the other takes roughly 24 minutes at normal walking speed. The terrain runs from Y -64 to Y 320.

Outside that area the world keeps generating normal vanilla Minecraft chunks, so you never hit a wall, you just leave the built part behind.

### Which Minecraft version does Yakanstone need?

Yakanstone is built for Minecraft Java **1.21.5**. Newer releases normally open it fine. Opening it in an *older* release is not supported: blocks and structures added after that version cannot load, and the world can be damaged by the attempt.

Bedrock players need a converted copy. See [the Bedrock notes in the FAQ](https://mcmeddon.com/faq#install-bedrock).

### Which biomes are in Yakanstone?

36 in total. The land is mostly Plains (21.7%), Stony Shore (9.6%), Beach (9.2%) and Wooded Badlands (6.7%), counted as shares of the land rather than of the whole map.

Water covers 55.3% of the map, and land 43.7%.

By volume this world's caves are Normal Caves (95.6%), Lush Caves (2.2%) and Deep Dark (0.9%). The [cave breakdown](https://mcmeddon.com/worlds/20260409-yakanstone#caves) has the rest.

The [full breakdown](https://mcmeddon.com/worlds/20260409-yakanstone#biome-composition) is further up this page, with every biome and its share.

### Which structures are in Yakanstone?

13 of the 19 structure types the scan checks are confirmed present: surface (4/7), underground (4/6), ocean (3/4), portal structures (1/1) and settlements (1/1).

Not confirmed: Igloos (not checked), Jungle pyramids (not checked), Woodland mansions (not checked), Ancient cities (missing), Trial chambers (missing) and Buried treasure (searched, not found). "Searched, not found" means the scan looked and came up empty; "not checked" means it has not been looked for yet.

[The structure list](https://mcmeddon.com/worlds/20260409-yakanstone#structure-coverage) above names every one of them.

### Is Yakanstone ready to play in survival?

Yes. A scan of the world file confirms loot tables, structures, animals and ores, so the survival loop runs from the first night: chests hold the game's real loot tables, mobs spawn as they do anywhere else, and you can mine, farm and build without adding anything. It plays in vanilla Minecraft, with no mods, no datapacks and no creative mode.

The [world contents report](https://mcmeddon.com/worlds/20260409-yakanstone#world-contents) at the bottom of this page holds the item-by-item detail.

### Where do I download Yakanstone?

From the [download link](https://www.patreon.com/posts/xarkoles-6k-1-21-155433371) on Patreon, also on the button at the top of this page.

Also available: the [source files](https://www.patreon.com/posts/source-files-157347239) on Patreon and the [PlanetMinecraft project page](https://www.planetminecraft.com/project/yakanstone/), which carries the release notes and the known issues for this particular build.

### What is new in Yakanstone?

Every world is built on the one before it, and Yakanstone brought 17 logged changes into the line: new terrain, new assets and fixes to the generators that made it.

From its list:

- dark oak forest additional dedicated subbiome added
- birch forest additional dedicated subbiome added
- oak forest additional dedicated subbiome added

The [full list](https://mcmeddon.com/worlds/20260409-yakanstone#world-changelog) is on this page. These are the world's own additions, not patches released after it, so an older download is not missing them.

### Can I look at Yakanstone before downloading it?

Yes. [Open it in the 3D explorer](https://mcmeddon.com/worlds/20260409-yakanstone/explore) and fly the real terrain in your browser, with the biomes, the caves and the marked structures. Nothing to install.

General questions about downloading and installing: https://mcmeddon.com/faq.md

## Downloads

- [Download world (Patreon)](https://www.patreon.com/posts/xarkoles-6k-1-21-155433371)
- [Download source files (Patreon)](https://www.patreon.com/posts/source-files-157347239)

## Elsewhere

- [Official PlanetMinecraft Post](https://www.planetminecraft.com/project/yakanstone/)

## Rights

Creative Commons Attribution-NonCommercial 4.0, with commercial servers and media
allowed by exception.

Allowed: play it, stream it, put it in videos; run it on your server, commercial or not;
share videos, images, renders and art, commercial or not; remix and redistribute, meaning
build on top and share with friends and your community.

Not allowed: sharing the map as-is, reselling it or selling it on the Marketplace,
bundling worlds into modpacks, claiming it as your own, or skipping the attribution.

Credit like this: `World by McMeddon, "Yakanstone"`, with a link back to
https://mcmeddon.com/worlds/20260409-yakanstone wherever the format allows one.

## On this site

- [World overview](https://mcmeddon.com/worlds/20260409-yakanstone)
- [3D map viewer](https://mcmeddon.com/worlds/20260409-yakanstone/explore)