The Lead Age

Evidence

Ran on Kiln's test stand (2026-11-04): TheLeadAgeFabric did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager; TheLeadAgeFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/block/dispatch/BlockStateModel.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.platform.NativeImage
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.blaze3d.vertex.PoseStack.Pose
• com.mojang.blaze3d.vertex.QuadInstance
• com.mojang.blaze3d.vertex.VertexConsumer
• net.fabricmc.fabric.api.biome.v1.BiomeModifications
• net.fabricmc.fabric.api.biome.v1.BiomeSelectors
• net.fabricmc.fabric.api.client.model.loading.v1.ModelLoadingPlugin
• net.fabricmc.fabric.api.client.model.loading.v1.ModelLoadingPlugin.Context
• net.fabricmc.fabric.api.client.model.loading.v1.ModelModifier
• net.fabricmc.fabric.api.client.model.loading.v1.ModelModifier.AfterBakeBlock
• net.fabricmc.fabric.api.client.model.loading.v1.ModelModifier.AfterBakeBlock.Context
• net.fabricmc.fabric.api.client.model.loading.v1.wrapper.WrapperBlockStateModel
• net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry
• net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry.PendingParticleProvider
• net.fabricmc.fabric.api.client.renderer.v1.mesh.MutableQuadView
• net.fabricmc.fabric.api.client.renderer.v1.mesh.QuadEmitter
• net.fabricmc.fabric.api.client.renderer.v1.sprite.FabricTextureAtlas
• net.fabricmc.fabric.api.client.renderer.v1.sprite.SpriteFinder
• net.fabricmc.fabric.api.client.rendering.v1.BlockColorRegistry
• net.fabricmc.fabric.api.client.rendering.v1.BlockEntityRendererRegistry
• net.fabricmc.fabric.api.client.rendering.v1.EntityRendererRegistry
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.StartDataPackReload
• net.fabricmc.fabric.api.loot.v3.LootTableEvents.Loaded
• net.fabricmc.fabric.api.resource.conditions.v1.ResourceCondition
• net.fabricmc.fabric.api.resource.conditions.v1.ResourceConditionType
• net.fabricmc.fabric.api.resource.conditions.v1.ResourceConditions
• net.minecraft.advancements.triggers.PlayerTrigger
• net.minecraft.client.Camera
• net.minecraft.client.color.block.BlockTintSource
• net.minecraft.client.model.geom.builders.UVPair
• net.minecraft.client.particle.BubbleColumnUpParticle
• net.minecraft.client.particle.BubbleParticle
• net.minecraft.client.particle.FlameParticle
• net.minecraft.client.particle.FlameParticle.Provider
• net.minecraft.client.particle.Particle
• net.minecraft.client.particle.ParticleProvider
• net.minecraft.client.particle.SingleQuadParticle
• net.minecraft.client.particle.SingleQuadParticle.Layer
• and 81 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

A vanilla+ expansion that introduces lead, customizable leaded glass & more. Includes compatibility with Create & Farmer's Delight!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file theleadage-fabric-26.3-1.2.0.jar. The scan reads the mod's classes; it does not run them.