Puzzles Lib

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

Evidence

Ran on Kiln's test stand (2026-11-04): PuzzlesLibFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess; PuzzlesLibFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess.

What it needs from Kiln

an access widener
Mixin
com.mojang.authlib.GameProfile
com.mojang.blaze3d.platform.InputConstants.Key
com.mojang.blaze3d.platform.Window
net.minecraft.client.MouseHandler
net.minecraft.client.MouseHandler.LastClick
net.minecraft.client.OptionInstance
net.minecraft.client.Options
net.minecraft.client.gui.Hud
net.minecraft.client.gui.components.Button
net.minecraft.client.gui.components.EditBox
net.minecraft.client.gui.components.PlayerTabOverlay
net.minecraft.client.gui.components.debug.DebugScreenEntries
net.minecraft.client.gui.components.debug.DebugScreenEntryStatus
net.minecraft.client.gui.components.debug.DebugScreenProfile
net.minecraft.client.gui.components.events.ContainerEventHandler
net.minecraft.client.gui.components.events.GuiEventListener
net.minecraft.client.gui.components.toasts.SystemToast
net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
net.minecraft.client.gui.screens.LoadingOverlay
net.minecraft.client.gui.screens.TitleScreen
net.minecraft.client.gui.screens.inventory.CreativeModeInventoryScreen
net.minecraft.client.gui.screens.worldselection.CreateWorldScreen
net.minecraft.client.gui.screens.worldselection.WorldCreationUiState
net.minecraft.client.gui.screens.worldselection.WorldCreationUiState.SelectedGameMode
net.minecraft.client.input.MouseButtonEvent
net.minecraft.client.input.MouseButtonInfo
net.minecraft.client.tutorial.TutorialSteps
net.minecraft.commands.Commands
net.minecraft.commands.synchronization.ArgumentTypeInfo
net.minecraft.commands.synchronization.ArgumentTypeInfo.Template
net.minecraft.commands.synchronization.SingletonArgumentInfo
net.minecraft.core.HolderLookup.RegistryLookup
net.minecraft.core.RegistryAccess
net.minecraft.core.RegistryAccess.Frozen
net.minecraft.core.component.DataComponentType
net.minecraft.core.component.DataComponentType.Builder
net.minecraft.core.component.DataComponents
net.minecraft.core.particles.ParticleType
net.minecraft.core.particles.SimpleParticleType
net.minecraft.network.chat.CommonComponents
and 80 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

Why is it called Puzzles? That's the puzzle.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file puzzleslib-v26.3.17-mc26.3.x+fabric.jar. The scan reads the mod's classes; it does not run them.

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