Meccha Crafteleon

Evidence

Ran on Kiln's test stand (2026-11-04): MecchaChameleonFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload; MecchaChameleonFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.authlib.GameProfile
• com.mojang.authlib.exceptions.AuthenticationException
• com.mojang.authlib.exceptions.AuthenticationUnavailableException
• com.mojang.authlib.exceptions.InsufficientPrivilegesException
• com.mojang.authlib.exceptions.InvalidCredentialsException
• com.mojang.authlib.minecraft.SessionService
• com.mojang.blaze3d.pipeline.RenderTarget
• com.mojang.blaze3d.platform.InputConstants.Key
• com.mojang.blaze3d.platform.NativeImage
• com.mojang.blaze3d.platform.NativeImage.Format
• com.mojang.blaze3d.platform.Window
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.blaze3d.vertex.PoseStack.Pose
• com.mojang.blaze3d.vertex.VertexConsumer
• com.mojang.renderpearl.api.pipeline.RenderPipeline
• io.netty.buffer.ByteBuf
• io.netty.channel.ChannelHandler
• io.netty.channel.embedded.EmbeddedChannel
• net.fabricmc.fabric.api.client.item.v1.ItemTooltipCallback
• net.fabricmc.fabric.api.client.networking.v1.ClientConfigurationNetworking
• net.fabricmc.fabric.api.client.networking.v1.ClientConfigurationNetworking.ConfigurationPayloadHandler
• net.fabricmc.fabric.api.client.networking.v1.ClientConfigurationNetworking.Context
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
• net.fabricmc.fabric.api.client.rendering.v1.LivingEntityRenderLayerRegistrationCallback
• net.fabricmc.fabric.api.client.rendering.v1.LivingEntityRenderLayerRegistrationCallback.RegistrationHelper
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents.AfterPlayerChange
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents.AfterDeath
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents.AllowDamage
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarting
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• 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

The true adaptation of the game Meccha Chameleon with 20+ maps ready to play !

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file meccha_chameleon-fabric-26.3-1.3.1.jar. The scan reads the mod's classes; it does not run them.