One Block

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

Evidence

Ran on Kiln's test stand (2026-11-04): OneBlockFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/lifecycle/v1/ServerLifecycleEvents.

What it needs from Kiln

Mixin
net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents
net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents.AfterPlayerChange
net.fabricmc.fabric.api.entity.event.v1.ServerPlayerEvents.AllowDeath
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.ServerStopped
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.PlayerBlockBreakEvents
net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.After
net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.Before
net.fabricmc.fabric.api.event.player.UseBlockCallback
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
net.fabricmc.fabric.api.resource.ResourceManagerHelper
net.fabricmc.fabric.api.resource.ResourcePackActivationType
net.minecraft.commands.CommandSourceStack
net.minecraft.commands.Commands
net.minecraft.commands.Commands.CommandSelection
net.minecraft.core.HolderSet
net.minecraft.core.HolderSet.Direct
net.minecraft.core.NonNullList
net.minecraft.core.RegistryAccess
net.minecraft.core.component.DataComponents
net.minecraft.core.particles.ParticleTypes
net.minecraft.nbt.CompoundTag
net.minecraft.nbt.NbtOps
net.minecraft.nbt.Tag
net.minecraft.network.chat.ClickEvent
net.minecraft.network.chat.ClickEvent.OpenUrl
net.minecraft.network.chat.ComponentSerialization
net.minecraft.network.chat.Style
net.minecraft.resources.RegistryOps
net.minecraft.server.MinecraftServer
net.minecraft.server.ServerScoreboard
net.minecraft.server.level.ServerChunkCache
net.minecraft.server.level.ServerPlayer.RespawnConfig
net.minecraft.server.level.WorldGenRegion
and 80 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

One Block: Begin your Minecraft adventure in a desolate world with just one respawning block. Break it, level it up, and unlock richer rewards with each upgrade.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file oneblock-5.2.0-fabric+26.3.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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