Maps of the Unknown

Evidence

Server-side mod: Kiln runs mods' code on Horizon's single-player server, not on dedicated servers.

What it needs from Kiln

• an access widener
• Mixin
• net.minecraft.client.server.IntegratedServer
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.synchronization.SuggestionProviders
• net.minecraft.core.HolderSet
• net.minecraft.core.HolderSet.Direct
• net.minecraft.core.HolderSet.Named
• net.minecraft.core.RegistryAccess
• net.minecraft.core.component.DataComponentMap
• net.minecraft.core.component.DataComponents
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.StringTag
• net.minecraft.nbt.Tag
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ServerChunkCache
• net.minecraft.tags.TagKey
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.item.MapItem
• net.minecraft.world.item.component.CustomData
• net.minecraft.world.item.component.ItemLore
• net.minecraft.world.level.chunk.ChunkGenerator
• net.minecraft.world.level.gamerules.GameRuleCategory
• net.minecraft.world.level.gamerules.GameRules
• net.minecraft.world.level.levelgen.SingleThreadedRandomSource
• net.minecraft.world.level.saveddata.maps.MapDecorationType
• net.minecraft.world.level.saveddata.maps.MapItemSavedData
• net.minecraft.world.level.storage.loot.LootContext
• net.minecraft.world.level.storage.loot.functions.ExplorationMapFunction
• net.minecraft.world.level.storage.loot.functions.FilteredFunction
• net.minecraft.world.level.storage.loot.functions.LootItemFunction
• net.minecraft.world.level.storage.loot.parameters.LootContextParams
• FabricLoader.isModLoaded()
• Minecraft.getSingleplayerServer()
• BlockPos.<init>()
• Holder.getRegisteredName()
• Registry.get()
• Registry.wrapAsHolder()
• BuiltInRegistries.MAP_DECORATION_TYPE
• and 20 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

Improves explorer map creation upon loot-table processing

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file bettermaps+26.2-0.9.1.jar. The scan reads the mod's classes; it does not run them.