CircuitSimCraft

Evidence

Ran on Kiln's test stand (2026-11-04): CircuitSimCraft did not start: java.lang.NoClassDefFoundError: net/minecraft/world/level/block/EntityBlock; CircuitSimCraftClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• 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.creativetab.v1.FabricCreativeModeTab
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndLevelTick
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• 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.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.components.events.GuiEventListener
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.codec.StreamCodec.CodecOperation
• 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.network.ServerGamePacketListenerImpl
• net.minecraft.world.entity.ai.village.poi.PoiType
• net.minecraft.world.entity.npc.villager.VillagerProfession
• net.minecraft.world.item.CreativeModeTab.Builder
• net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
• net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
• net.minecraft.world.item.CreativeModeTab.Output
• net.minecraft.world.level.BlockGetter
• net.minecraft.world.level.LevelReader
• net.minecraft.world.level.block.EntityBlock
• net.minecraft.world.level.block.Rotation
• net.minecraft.world.level.block.entity.BlockEntity
• net.minecraft.world.level.block.entity.BlockEntityType
• net.minecraft.world.level.block.entity.BlockEntityType.BlockEntitySupplier
• Minecraft.setScreenAndShow()
• GuiGraphicsExtractor.horizontalLine()
• GuiGraphicsExtractor.outline()
• and 22 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

Teach analog electronics in Minecraft: resistors through transistors, a full 3-phase system, three trading villagers, AC/Bode analysis, and a real MNA circuit solver (SPICE-family). Check https://github.com/rpicos-uib/circuitsimcraft.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file circuitsimcraft-1.26.3.jar. The scan reads the mod's classes; it does not run them.