Opium Essentials

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): OpiumEssentials did not start: java.lang.NoClassDefFoundError: net/minecraft/world/MenuProvider.

What it needs from Kiln

Mixin
net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
net.minecraft.commands.CommandSourceStack
net.minecraft.commands.Commands
net.minecraft.commands.Commands.CommandSelection
net.minecraft.commands.SharedSuggestionProvider
net.minecraft.server.MinecraftServer
net.minecraft.server.network.ServerGamePacketListenerImpl
net.minecraft.server.players.PlayerList
net.minecraft.world.SimpleContainer
net.minecraft.world.SimpleMenuProvider
net.minecraft.world.entity.player.Inventory
net.minecraft.world.inventory.AnvilMenu
net.minecraft.world.inventory.ChestMenu
net.minecraft.world.inventory.ContainerLevelAccess
net.minecraft.world.inventory.GrindstoneMenu
net.minecraft.world.inventory.Slot
net.minecraft.world.inventory.StonecutterMenu
net.minecraft.world.level.portal.TeleportTransition
net.minecraft.world.level.portal.TeleportTransition.PostTeleportTransition
net.minecraft.world.level.storage.LevelResource
net.minecraft.world.MenuProvider
ServerLevel.getServer()
ServerPlayer.getEnderChestInventory()
ServerPlayer.getXRot()
ServerPlayer.getYRot()
ServerPlayer.openMenu()
ServerPlayer.position()
ServerPlayer.teleport()
Player.getInventory()

On the roadmap: Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Adds special commands to make your multiplayer experience better

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file opium-essentials-mc26.3+maj03+1.0-Release.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

Thank you. Your report is counted.