Not So Hardcore

Evidence

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

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.command.v2.CommandRegistrationCallback
• 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.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.arguments.EntityArgument
• 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.network.syncher.EntityDataSerializers
• net.minecraft.network.syncher.SynchedEntityData
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ServerPlayer.RespawnConfig
• net.minecraft.server.level.ServerPlayerGameMode
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.server.players.PlayerList
• net.minecraft.util.CommonColors
• net.minecraft.world.food.Foods
• net.minecraft.world.item.Item.TooltipContext
• net.minecraft.world.level.GameType
• net.minecraft.world.level.storage.LevelData
• net.minecraft.world.level.storage.LevelData.RespawnData
• Minecraft.setScreenAndShow()
• GuiGraphicsExtractor.centeredText()
• GuiGraphicsExtractor.centeredText()
• Screen.extractRenderState()
• LocalPlayer.getEntityData()
• ServerLevel.getRespawnData()
• ServerLevel.getServer()
• ServerPlayer.gameMode
• and 9 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

Semi-Hardcore mod - multiple lives & life regain over time

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file notsohardcore-0.2.3_fabric26.3.jar. The scan reads the mod's classes; it does not run them.