Ultimate Brass Knuckles - Unleash the Ultimate Power!

Evidence

Ran on Kiln's test stand (2026-11-04): UltimateBrassKnucklesMod did not start: java.lang.NoClassDefFoundError: net/minecraft/world/level/BlockGetter; UBKClient did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/player/UseItemCallback.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents.EndExtraction
• net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.AttackBlockCallback
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.Before
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.fabricmc.fabric.api.event.player.UseItemCallback
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• 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.client.Options
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.renderer.LevelRenderer
• net.minecraft.core.RegistryAccess
• net.minecraft.core.component.DataComponentType
• net.minecraft.core.component.DataComponents
• net.minecraft.gizmos.GizmoStyle
• net.minecraft.gizmos.Gizmos
• net.minecraft.gizmos.Gizmos.TemporaryCollection
• net.minecraft.nbt.CompoundTag
• net.minecraft.network.RegistryFriendlyByteBuf
• 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.level.ServerPlayerGameMode
• net.minecraft.tags.BlockTags
• net.minecraft.util.Prediction
• net.minecraft.world.entity.EquipmentSlotGroup
• and 72 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

Step into the game with Ultimate Brass Knuckles! Inspired by the legendary Ultimate Fist, this mod introduces an overpowered tool that obliterates enemies and crushes blocks with ease.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file ultimate-brass-knuckles-fabric-1.0.0+26.3.jar. The scan reads the mod's classes; it does not run them.