Extrabiomes

Evidence

Ran on Kiln's test stand (2026-11-04): ExtraBiomesFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/core/HolderGetter; ExtraBiomesFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/RenderLayerParent.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.math.Axis
• net.fabricmc.fabric.api.biome.v1.BiomeModifications
• net.fabricmc.fabric.api.biome.v1.BiomeSelectors
• net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry
• net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry.PendingParticleProvider
• net.fabricmc.fabric.api.client.render.fluid.v1.FluidRenderingRegistry
• net.fabricmc.fabric.api.client.rendering.v1.BlockEntityRendererRegistry
• net.fabricmc.fabric.api.client.rendering.v1.EntityRendererRegistry
• net.fabricmc.fabric.api.client.rendering.v1.LivingEntityRenderLayerRegistrationCallback
• net.fabricmc.fabric.api.client.rendering.v1.LivingEntityRenderLayerRegistrationCallback.RegistrationHelper
• net.fabricmc.fabric.api.client.rendering.v1.ModelLayerRegistry
• net.fabricmc.fabric.api.client.rendering.v1.ModelLayerRegistry.TexturedLayerDefinitionProvider
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarting
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndLevelTick
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.fabricmc.fabric.api.item.v1.BlockTransformerHelper
• net.fabricmc.fabric.api.object.builder.v1.block.entity.FabricBlockEntityTypeBuilder
• net.fabricmc.fabric.api.object.builder.v1.block.entity.FabricBlockEntityTypeBuilder.Factory
• net.fabricmc.fabric.api.object.builder.v1.entity.FabricDefaultAttributeRegistry
• net.fabricmc.fabric.api.registry.FlammableBlockRegistry
• net.fabricmc.fabric.api.tag.convention.v2.ConventionalBiomeTags
• net.minecraft.advancements.triggers.SimpleCriterionTrigger
• net.minecraft.advancements.triggers.SimpleCriterionTrigger.SimpleInstance
• net.minecraft.client.color.block.BlockTintSources
• net.minecraft.client.model.EntityModel
• net.minecraft.client.model.HumanoidModel
• net.minecraft.client.model.geom.EntityModelSet
• net.minecraft.client.model.geom.ModelLayerLocation
• net.minecraft.client.model.geom.ModelLayers
• net.minecraft.client.model.geom.ModelPart
• net.minecraft.client.model.geom.PartPose
• net.minecraft.client.model.geom.builders.CubeDeformation
• net.minecraft.client.model.geom.builders.CubeListBuilder
• net.minecraft.client.model.geom.builders.LayerDefinition
• net.minecraft.client.model.geom.builders.MeshDefinition
• net.minecraft.client.model.geom.builders.PartDefinition
• and 82 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

ExtraBiomes is a world generation addon/mod for Minecraft, available for both Bedrock and Java Edition, that adds 26 new biomes to the overworld, along with the mobs, blocks, and structures to fill them, from burnt forests and jellyfish-filled oceans to

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file ExtraBiomes-fabric-v3.10.0-26.3.jar. The scan reads the mod's classes; it does not run them.