SulfurCubes+

Evidence

Ran on Kiln's test stand (2026-11-04): SulfurCubesPlus did not start: java.lang.NoClassDefFoundError: net/minecraft/world/level/material/PushReaction; SulfurCubesPlusClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/inventory/AbstractCommandBlockEditScreen.

What it needs from Kiln

• an access widener
• Mixin
• 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.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.screens.inventory.AbstractCommandBlockEditScreen
• 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.world.entity.monster.cubemob.SulfurCube
• net.minecraft.world.level.BaseCommandBlock
• net.minecraft.world.level.block.RenderShape
• net.minecraft.world.level.material.PushReaction
• net.minecraft.world.phys.shapes.Shapes
• Minecraft.execute()
• Minecraft.setScreenAndShow()
• ServerLevel.getEntity()
• ServerPlayer.canUseGameMasterBlocks()
• BlockBehaviour.Properties.pushReaction()
• BlockStateProperties.LEVEL

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

Fabric mod extending sulfur cube mechanics for Minecraft 26.2 that Mojang will not add.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file sulfurcubesplus-1.1.0.jar. The scan reads the mod's classes; it does not run them.