Old Growth Birch Forest
old growth birch forest is part of the forest biome family. Its surface, vegetation and creature eligibility are selected by the wilderness generator.
Base reference from 0.168.0-season.11. Season modifiers and server settings can alter actual values. Wilderness adventure itself is already available.

- Surface
- Grass Block
- Filler
- Dirt
- Snow
- —
- Surface ice
- —
Terrain & travel#
The main surface is Grass Block over Dirt. Trees or giant fungi can generate according to this biome’s vegetation mix.
The image shows a reference-seed sample of this biome from the game generator; neighbouring terrain may be visible. It is not the current map or fixed coordinates. The map stays fixed during a season; explore again when the map changes.
Eligible creatures#
This is biome eligibility only: surface/cave, Y, light, time and distance rules must also pass. General cave species are not necessarily surface spawns.
- Zombie · surface / caves
- Skeleton · surface / caves
- Spider · surface / caves
- Cave Spider · caves
- Creeper · surface / caves
- Enderman · surface
- Witch · surface
- Slime (big) · surface / caves
- Moss Wolf · surface
- Cave Bat · caves
- Crystal Beetle · caves
- Blind Digger · caves
- Lava Slug · caves
- Abyss Warden · caves
- Withered Treant · surface
- Stalactite Mimic · caves
- Cave Broodmother · caves
- Lost Miner · caves
- Gloom Moth · caves
- Amethyst Sentry · caves
- Rift Imp · caves
- Gelatinous Cube · caves
- Cow · surface
- Sheep · surface
- Pig · surface
- Chicken · surface
Structures & resources#
Risk#
Not being a harsh biome does not mean safety: caves, depth, creatures and environmental damage still matter.
Version & sources#
Current test worktree 0.168.0-season.11, rules fingerprint 82befbc7bf99; not a committed release or a production launch. Images retain original render revision d7ffb19, not new screenshots. Server settings can change values.
Reference files: shared/wilds-gen/biomes.js · shared/wilds-gen/structures.js · shared/mobs.js · shared/danger.js