World type

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World type is an option to change how worlds generate in Minecraft.

World types[edit]

All editions[edit]

Type Description Image

Default (JE/3DS)
Infinite (BE)
This is the default type of generation. Various landscapes generate utilizing Biomes.

level.dat generatorName: default

Minecraft 2.jpg

Superflat (JE)
Flat (BE/3DS)
This type of generation creates a world that is completely flat, at an altitude of y=4, by default. On a classic (default) superflat world, the terrain consists of one layer of bedrock, two layers of dirt, and one layer of grass. Mobs spawn normally; slimes are prevalent.

In superflat worlds, villages will also generate, and superflat worlds can be further customized through the use of presets, which allows you to change the layers of the terrain, spawn trees, larger villages, strongholds, etc.

level.dat generatorName: flat


Java and Legacy Console Editions[edit]

Type Description Image

Amplified Worlds (CE)

Generates many large mountains which dwarf even the extreme hills seen in default world types, and will more often than not reach the world height limit. Due to extremely steep cliffs and unforgiving terrain, careless players will find it quite difficult to survive in this world type. Certain biomes (i.e. swamplands, oceans and rivers) may see no obvious change in height. Villages will still spawn in this world type regardless of how flat the ground is, causing the buildings to generate in bizarre ways.

In Console Edition, this is available for Xbox One and PS4 only, but terrain will generate only to about Y128 instead of the world height limit, but foliage may still go above Y128. It can be selected together with any of the world sizes described in the section below.

level.dat generatorName: amplified


Java Edition exclusive[edit]

Type Description Image

Large Biomes
Generates a default world type, but with each geographic feature 4x larger along the X and Z axis, which results in biomes with 16 times as much area. Because of this, villages, desert temples, jungle temples, and other generated structures are all more likely to be found.

level.dat generatorName: largeBiomes

Large Biome.png

Customized[until 1.13]
A customizable world type, with four pages of settings. The first page contains customization options which affect how structures and biomes will generate. The second page contains settings for ore generation. The third and fourth page contain advanced terrain customization options. In addition to these options, there are several pre-made presets.

level.dat generatorName: customized

Customized Biome.png

Debug Mode
A world type containing all of the block states laid out in a grid at layer y=70 for convenient viewing. It can be accessed by holding down the ⇧ Shift key while cycling through the world types.

In this world type there is a floor on y=60 made of barriers, and you cannot place or destroy blocks.

level.dat generatorName: debug_all_block_states

Debug World Type Flyover 14w32d.png

Buffet Mode[upcoming 1.13]
A customisable world type which creates a world of only a single biome. It can be generated using the surface, floating islands, and cave options, which result in Overworld, Nether, and End generation, respectively - regardless of whether that biome is normally found in that dimension.

level.dat generatorName: buffet

Buffet Biome.png

Bedrock Edition exclusive[edit]

Type Description Image
Old This world type has a finite area of 256×256 blocks with an invisible bedrock barrier surrounding it.

In Pi Edition, which is based on Pocket Edition Alpha 0.6.1, this is the only world type.



0.31 ? World type were introduced, they have officially used in Map types, map shapes, and map themes, all of which allowed the user to customize how a world would generate.
February 27, 2010 World types no longer function.
? Map types, shapes, and themes were removed.
World type were removed, now replaced by World selection.
Official release
1.1 12w01a Re-added World type options, currently Default and Superflat.
1.3.1 12w19a New world type 'Large biomes' is added.
1.4.2 12w37a Added ability to customize super flat world.
1.7.2 13w36a New world type 'AMPLIFIED' is added.
1.8 14w17a New world type 'Customized' is added.
14w26a New world type 'Debug Mode' is added.
Upcoming Java Edition
1.13 18w06a Removed customized world type.
18w16a Added buffet world type.
Pocket Edition Alpha
0.9.0 Added Flat world type.
Added Infinite world type.
Added Old option.
0.16.0 build 1 Removed old world type.
build 5 Added back old world type.
Legacy Console Edition
TU5 CU1 1.0 Patch 1 Added Superflat world type. The Nether is also flat in this world type.
TU25 CU14 1.17 Added ability to customize superflat world.
CU36 1.38 Added Amplified Terrain option (Xbox One and PS4 only).


Issues relating to "World type" are maintained on the bug tracker. Report issues there.


  • The Sky Dimension can be recreated with the Buffet world type by selecting The End as the Dimension and selecting the Biome as any Forest.[upcoming 1.13]

See also[edit]

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