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Trial Chamber Tracker

Trial spawner cooldown timers and vault markers
2026-10-26_17.01.12.png

2026-10-26_17.01.12.png

2026-10-26_17.03.42.png

2026-10-26_17.03.42.png

emberbocor | Trial Chamber Tracker
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Description

Trial Chamber Tracker

Know which trial spawners are ready and which vaults you still have to open.

Trial Chamber Tracker puts a small label above trial spawners and vaults. A spawner that is cooling down shows how long until it can be challenged again. A vault shows whether you have already opened it, and your opened vaults are remembered, so the labels stay right from across the chamber and after you log out and back in.

Client-side only. Install it on your client and it works on any server: vanilla, Paper or modded, with or without this mod.

Features

  • Cooldown timer. A trial spawner in cooldown shows Cooldown 29:41, counting down until it can be activated again. Ominous spawners show Ominous cooldown.
  • Vault markers. A vault you can still open shows Ready (green, ominous vaults in aqua). A vault you have opened shows Opened (red). It turns Opened as soon as your key is accepted, so you can run straight to the next vault.
  • Remembered. Cooldowns you saw start and vaults you opened are saved per world or server and per player, so labels survive leaving and rejoining.
  • Learns the server's cooldown. If a server, map or data pack uses a different cooldown length, the mod measures it the first time you watch a cooldown start and end, and uses it from then on.
  • Like player name tags. Labels are bright when nothing is in the way and faint through blocks, shown within 32 blocks by default, and hidden with the rest of the HUD (F1).
  • Self-correcting. If a server or mod resets a vault, it goes back to Ready the next time you walk up to it.

How it works

The mod only uses what a vanilla server already sends to every player, so it never needs anything on the server.

  • Servers do not send when a cooldown ends. The timer starts when your client sees a spawner finish its wave. If a spawner was already cooling down before you saw it finish, the label shows Cooldown without a number.
  • Servers tell nearby players which of them can still open a vault. The mod reads that for you only. A vault you opened before installing the mod is marked as soon as you stand next to it for a moment.

Configuration

config/trialchambertracker-client.json

Option Default Meaning
showSpawnerTimers true Show cooldown timers above trial spawners
showVaultMarkers true Show Ready / Opened above vaults
showThroughBlocks true Show labels faintly through blocks, like player name tags
displayRange 32 How far away labels are shown, 1 to 64 blocks

If a server does not allow seeing through blocks, set showThroughBlocks to false: labels are then hidden by anything in front of them.

Requirements

Minecraft NeoForge Forge Fabric
26.3 26.3.0.0-beta+ 66.0.0+ Loader 0.19.3+, Fabric API 0.160.5+
26.2 26.2.0.0-beta+ 65.0.0+ Loader 0.18.4+, Fabric API 0.152.1+
26.1 - 26.1.2 26.1.0.1-beta+ 62.0.0+ Loader 0.18.4+, Fabric API 0.144.0+
1.21.11 21.11.42+ 61.0.1+ Loader 0.17.3+, Fabric API 0.139.5+
1.21 - 1.21.1 21.1.1+ (1.21.1) 52.0.0+ (1.21.1) Loader 0.15.11+, Fabric API 0.102.0+

Minecraft 26.x needs Java 25. NeoForge and Forge are separate loaders, so pick the jar for your loader.

Compatibility

  • Works with any mod that keeps the vanilla trial spawner and vault blocks.
  • Mods or plugins that reset vaults or change cooldown lengths are handled by the self-correction and the learned cooldown.

Source and issues

Source code, full documentation and issue tracker: https://github.com/emberbocor/trialchambertracker

License: MIT

Trial Chamber Tracker Team

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