The Copperier Age: Copperier Copper

Evidence

Ran on Kiln's test stand (2026-11-04): TheCopperierAgeFabric did not start: java.lang.NoSuchMethodError: 'java.util.Optional net.fabricmc.loader.api.FabricLoader.getModContainer(java.lang.String)'; TheCopperierAgeClientFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/EventFactory.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.blaze3d.vertex.PoseStack.Pose
• com.mojang.blaze3d.vertex.VertexConsumer
• com.mojang.math.Axis
• net.minecraft.client.gui.screens.MenuScreens
• net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
• net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
• net.minecraft.client.gui.screens.inventory.ContainerScreen
• net.minecraft.client.model.Model
• net.minecraft.client.model.geom.ModelLayerLocation
• net.minecraft.client.model.geom.ModelPart
• net.minecraft.client.model.geom.PartPose
• 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
• net.minecraft.client.model.object.cart.MinecartModel
• net.minecraft.client.particle.LavaParticle
• net.minecraft.client.particle.LavaParticle.Provider
• net.minecraft.client.renderer.OrderedSubmitNodeCollector
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.client.renderer.SubmitNodeCollector
• net.minecraft.client.renderer.SubmitNodeCollector.CustomGeometryRenderer
• net.minecraft.client.renderer.blockentity.BlockEntityRenderer
• net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
• net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider.Context
• net.minecraft.client.renderer.blockentity.state.BlockEntityRenderState
• net.minecraft.client.renderer.entity.EntityRendererProvider
• net.minecraft.client.renderer.entity.EntityRendererProvider.Context
• net.minecraft.client.renderer.entity.MinecartRenderer
• net.minecraft.client.renderer.entity.state.MinecartRenderState
• net.minecraft.client.renderer.feature.ModelFeatureRenderer
• net.minecraft.client.renderer.feature.ModelFeatureRenderer.CrumblingOverlay
• net.minecraft.client.renderer.rendertype.RenderTypes
• net.minecraft.client.renderer.texture.OverlayTexture
• net.minecraft.client.resources.sounds.EntityBoundSoundInstance
• net.minecraft.client.resources.sounds.SimpleSoundInstance
• net.minecraft.client.sounds.SoundEngine
• net.minecraft.client.sounds.SoundEngine.PlayResult
• net.minecraft.client.sounds.SoundManager
• and 81 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Expends and enhances the theme of The Copper Age drop. New blocks and mechanics, many tweaks, and awesome optional retextures!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file TheCopperierAge-1.2.1-mc26.3-fabric.jar. The scan reads the mod's classes; it does not run them.