Multiverse

Evidence

Ran on Kiln's test stand (2026-11-04): it stopped at kotlin.jvm.internal.Intrinsics, a class from a jar nested inside the mod; Kiln does not unpack nested jars yet.

What it needs from Kiln

• Mixin
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.arguments.DimensionArgument
• net.minecraft.commands.arguments.IdentifierArgument
• net.minecraft.commands.arguments.coordinates.Vec2Argument
• net.minecraft.commands.arguments.coordinates.Vec3Argument
• net.minecraft.core.HolderGetter
• net.minecraft.core.RegistryAccess
• net.minecraft.network.protocol.Packet
• net.minecraft.network.protocol.game.ClientboundTickingStatePacket
• net.minecraft.network.protocol.game.ClientboundTickingStepPacket
• net.minecraft.server.MinecraftServer
• net.minecraft.server.ServerTickRateManager
• net.minecraft.server.level.ServerChunkCache
• net.minecraft.server.permissions.PermissionLevel
• net.minecraft.util.TimeUtil
• net.minecraft.world.TickRateManager
• net.minecraft.world.level.block.ColorCollection
• net.minecraft.world.level.chunk.ChunkGenerator
• net.minecraft.world.level.dimension.BuiltinDimensionTypes
• net.minecraft.world.level.dimension.DimensionType
• net.minecraft.world.level.dimension.LevelStem
• net.minecraft.world.level.gamerules.GameRules
• net.minecraft.world.level.levelgen.FlatLevelSource
• net.minecraft.world.level.levelgen.WorldOptions
• net.minecraft.world.level.levelgen.flat.FlatLayerInfo
• net.minecraft.world.level.levelgen.flat.FlatLevelGeneratorSettings
• HolderLookup.listElements()
• Registry.getOrThrow()
• Registries.BIOME
• Registries.DIMENSION_TYPE
• Registries.LEVEL_STEM
• ServerLevel.dimensionTypeRegistration()
• ServerLevel.enabledFeatures()
• ServerLevel.getChunkSource()
• ServerLevel.getGameRules()
• ServerLevel.getSeed()
• ServerLevel.isFlat()
• Blocks.BEDROCK
• Blocks.STAINED_GLASS

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

In the author's words

Create custom dimensions at runtime with commands!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file Multiverse-0.6.1+26.3.jar. The scan reads the mod's classes; it does not run them.