Bedrock Biome Generator

Create custom biomes for Minecraft Bedrock Edition with climate, surface materials, client visuals, and biome replacement tuned against the current stable docs.

STABLE DOCS CHECKED - v1.21.130

Custom biomes may still need experiments in-world

Biome Configuration

Basic Information

Biome Identifier

Format Version

Official biome rules replace_biomes + surface_builder

Replacement targets must omit namespaces; amount is 0.0-1.0 and noise frequency is 0.0-100.0.

Climate Settings

Temperature

0.8

Downfall (Humidity)

0.4

Snow Accumulation Min

0.0

Snow Accumulation Max

0.125

Surface Materials

Top Material (Surface)

Mid Material (Subsurface)

Foundation Material (Deep)

Sea Material

Sea Floor Material

Sea Floor Depth

Terrain Settings

Terrain Noise Type

Visual Appearance

Sky Color

Fog Type (Optional)

Water Surface Color

Water Surface Opacity (Optional)

1.0

Only applies if less than 1.0

Grass Color

Foliage Color

Biome Music (Optional)

Ambient Sounds (Optional)

Partial Biome Replacement (Required)

Important

Partial biome replacement is required for custom biomes to appear in the world. Without this, your biome will not generate naturally.

Target Biomes to Replace

Plains

Forest

Beach

Desert

Taiga

Swamp

Birch Forest

Jungle

Replacement Amount (0-1)

0.3

Higher values = more frequent appearance of your biome

Noise Frequency Scale

1.5

Lower values = larger contiguous areas of your biome

Preview & Code

Visual Preview

Temperature:
0.8

Humidity:
0.4

Surface:
Grass Block

Climate:
Temperate

Sky Color:
#B0C4DE

Water Color:
#4A90E2

Export Options

.zip format: Single archive with separate BP and RP folders for manual installation

.mcaddon format: Generates two .mcaddon files (BP + RP) for direct import into Minecraft

Important Notes

Enable "Custom Biomes" experiment in world settings
Backup your world before testing
Use the current stable format version for new files
minecraft:replace_biomes component is REQUIRED

Behavior Pack

Resource Pack

Manifest