Editable World Generation

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

Evidence

Ran on Kiln's test stand (2026-11-04): CustomWorldGen did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.Registries does not have member field 'net.minecraft.resources.ResourceKey WORLD_PRESET'; CustomWorldGenClient did not start: java.lang.NoClassDefFoundError: net/minecraft/server/MinecraftServer.

What it needs from Kiln

an access widener
Mixin
com.mojang.blaze3d.platform.InputConstants.Key
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.EndLevelTick
net.minecraft.TracingExecutor
net.minecraft.client.gui.components.AbstractSelectionList
net.minecraft.client.gui.components.AbstractSelectionList.Entry
net.minecraft.client.gui.components.AbstractSliderButton
net.minecraft.client.gui.components.AbstractWidget
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.ContainerObjectSelectionList
net.minecraft.client.gui.components.ContainerObjectSelectionList.Entry
net.minecraft.client.gui.components.MultiLineTextWidget
net.minecraft.client.gui.components.events.GuiEventListener
net.minecraft.client.gui.screens.TitleScreen
net.minecraft.client.input.KeyEvent
net.minecraft.core.BlockPos.MutableBlockPos
net.minecraft.core.RegistryAccess
net.minecraft.core.RegistryAccess.Frozen
net.minecraft.core.SectionPos
net.minecraft.nbt.CompoundTag
net.minecraft.network.chat.CommonComponents
net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket
net.minecraft.server.MinecraftServer
net.minecraft.server.level.ChunkMap
net.minecraft.server.level.ServerChunkCache
net.minecraft.server.level.ThreadedLevelLightEngine
net.minecraft.server.network.ServerGamePacketListenerImpl
net.minecraft.server.players.PlayerList
net.minecraft.util.Mth
net.minecraft.util.Util
net.minecraft.world.level.ChunkPos
net.minecraft.world.level.NoiseColumn
net.minecraft.world.level.biome.BiomeResolver
net.minecraft.world.level.biome.BiomeSource
net.minecraft.world.level.biome.Climate
net.minecraft.world.level.biome.Climate.Sampler
and 51 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

A fabric mod that adds a new world type which allows you to create your very own custom world types by editing the world type. This also adds a complete user friendly interface.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file customworldgen-mc26.3-4.3.2.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

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