Custom Dimensions

Evidence

Ran on Kiln's test stand (2026-11-04): CustomDimensions did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/command/v2/CommandRegistrationCallback.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.minecraft.SharedConstants
• net.minecraft.WorldVersion
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.arguments.IdentifierArgument
• net.minecraft.core.particles.DustParticleOptions
• net.minecraft.server.MinecraftServer
• net.minecraft.server.packs.PackType
• net.minecraft.server.packs.metadata.pack.PackFormat
• net.minecraft.server.permissions.Permission
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.world.level.storage.LevelResource
• net.minecraft.world.phys.AABB
• ServerLevel.getMaxY()
• ServerLevel.getMinY()
• ServerLevel.getPlayers()
• ServerLevel.getServer()
• ServerLevel.sendParticles()
• ServerPlayer.createCommandSourceStack()
• ServerPlayer.getBoundingBox()
• ServerPlayer.getXRot()
• ServerPlayer.getYRot()
• ServerPlayer.teleportTo()
• Player.isShiftKeyDown()
• Blocks.END_PORTAL_FRAME

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

In the author's words

Server-side Fabric mod for persistent custom dimensions and two-way portals.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file custom-dimensions-1.3.1.jar. The scan reads the mod's classes; it does not run them.