Steel Progression

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

Evidence

Ran on Kiln's test stand (2026-11-04): SteelProgressionFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/world/item/StandingAndWallBlockItem; SteelProgressionClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/MenuScreens$ScreenConstructor.

What it needs from Kiln

Mixin
net.fabricmc.fabric.api.client.item.v1.ItemTooltipCallback
net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
net.fabricmc.fabric.api.object.builder.v1.world.poi.PoiHelper
net.minecraft.client.gui.screens.MenuScreens
net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
net.minecraft.client.gui.screens.inventory.AbstractFurnaceScreen
net.minecraft.client.gui.screens.recipebook.RecipeBookComponent
net.minecraft.client.gui.screens.recipebook.RecipeBookComponent.TabInfo
net.minecraft.client.gui.screens.recipebook.SearchRecipeBookCategory
net.minecraft.core.Direction.Axis
net.minecraft.core.Direction.Plane
net.minecraft.core.HolderSet
net.minecraft.core.HolderSet.Named
net.minecraft.core.RegistryAccess
net.minecraft.core.component.DataComponentInitializers
net.minecraft.core.component.DataComponentInitializers.SingleComponentInitializer
net.minecraft.core.component.DataComponents
net.minecraft.core.particles.ParticleTypes
net.minecraft.stats.Stats
net.minecraft.tags.DamageTypeTags
net.minecraft.tags.TagKey
net.minecraft.world.MenuProvider
net.minecraft.world.damagesource.DamageSource
net.minecraft.world.entity.EquipmentSlot
net.minecraft.world.entity.LightningBolt
net.minecraft.world.entity.ai.village.poi.PoiManager
net.minecraft.world.entity.ai.village.poi.PoiManager.Occupancy
net.minecraft.world.flag.FeatureFlags
net.minecraft.world.inventory.AbstractFurnaceMenu
net.minecraft.world.inventory.MenuType
net.minecraft.world.inventory.MenuType.MenuSupplier
net.minecraft.world.inventory.RecipeBookType
net.minecraft.world.item.CreativeModeTab.Builder
net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
net.minecraft.world.item.CreativeModeTab.Output
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

Adds Steel to the survival progression along with powerful new redstone capabilities

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file Steel-Progression-0.1.2+fabric26.3.jar. The scan reads the mod's classes; it does not run them.

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