Challenge Timer by OPNiki

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

Evidence

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

What it needs from Kiln

net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
net.fabricmc.fabric.api.client.command.v2.ClientCommands
net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
net.minecraft.client.server.IntegratedServer
net.minecraft.world.level.storage.LevelResource
Minecraft.getSingleplayerServer()
GuiGraphicsExtractor.centeredText()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3)

In the author's words

A run timer above your hotbar, controlled by commands. Free hex colour, optional background, and progress saved per world. Only for Singleplayer.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file challenge-timer-1.1.0.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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