Achievements Dupe Mod

Evidence

Ran on Kiln's test stand (2026-11-04): DupeMod did not start: java.lang.NoClassDefFoundError: net/minecraft/world/scores/ScoreHolder; DupeModClient did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/client/networking/v1/ClientPlayConnectionEvents.

What it needs from Kiln

• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• 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.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.minecraft.advancements.Advancement
• net.minecraft.client.gui.Hud
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.ChatComponent
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.protocol.common.custom.CustomPacketPayload
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
• net.minecraft.server.MinecraftServer
• net.minecraft.server.PlayerAdvancements
• net.minecraft.server.ServerAdvancementManager
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.util.Prediction
• net.minecraft.world.scores.Objective
• net.minecraft.world.scores.ScoreAccess
• net.minecraft.world.scores.Scoreboard
• net.minecraft.world.scores.criteria.ObjectiveCriteria
• net.minecraft.world.scores.criteria.ObjectiveCriteria.RenderType
• net.minecraft.world.scores.ScoreHolder
• AdvancementHolder.value()
• Minecraft.setScreenAndShow()
• Gui.hud
• GuiGraphicsExtractor.centeredText()
• Screen.extractRenderState()
• ServerPlayer.drop()
• ServerPlayer.getAdvancements()

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

In the author's words

Turn your achievements into dupe tokens and copy any item in your hand. Press a key, open the menu, spend a token, done. Whatever you're holding gets duplicated and dropped on the ground. The more achievments you unlock, the more you can duplicate.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file dupe-mod-1.0.0+mc26.3.jar. The scan reads the mod's classes; it does not run them.