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Minecraft: Java Edition
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⏱ TrialTimer
Configurable Trial Spawner cooldown — because 30 minutes is way too long.
🔧 What does it do?
Vanilla Trial Spawners have a hardcoded 30-minute cooldown after a wave is completed. TrialTimer lets you set that to whatever you want — down to a few seconds if needed.
No client-side mods required. Works fully server-side.
When a spawner finishes its cooldown, nearby players receive a broadcast message so they know it's ready to fight again.
⚙️ How does it work?
The 30-minute rule is hardcoded in Minecraft's source code, so datapacks can't touch it.
TrialTimer works around this by hooking into the spawner's internal state via NMS reflection:
when a spawner enters cooldown, the plugin overwrites cooldownEndsAt to your configured duration.
Minecraft then reads that value and considers the cooldown over — simple and clean.
📦 Installation
- Drop
TrialTimer-x.x.x.jarinto yourplugins/folder - Restart the server
- Edit
plugins/TrialTimer/config.yml - Run
/trialtimer reload
🗂 config.yml
# Cooldown duration in minutes. Supports decimals (e.g. 0.5 = 30 seconds).
# Vanilla default: 30 minutes
cooldown-minutes: 5.0
# Language for plugin messages.
# Available: en, de
language: en
# Broadcast a message to nearby players when a Trial Spawner finishes its cooldown.
broadcast:
enabled: true
radius: 64 # in blocks
# Debug mode — logs every cooldown modification to the console.
debug: false
Quick reference — Minutes → Ticks
| Minutes | Seconds | Ticks |
|---|---|---|
| 0.5 | 30s | 600 |
| 1 | 60s | 1,200 |
| 5 | 300s | 6,000 |
| 10 | 600s | 12,000 |
| 30 | 1800s | 36,000 (vanilla) |
💬 Commands
| Command | Description | Permission |
|---|---|---|
/trialtimer help |
Shows command overview | trialtimer.use |
/trialtimer info |
Shows current cooldown | trialtimer.use |
/trialtimer reload |
Reloads config + language | trialtimer.reload |
Alias: /tt
📢 Broadcast
When a Trial Spawner finishes its cooldown, all players within the configured radius receive a message:
[TrialTimer] A Trial Spawner at 42, 63, -128 is ready to fight again!
The message is fully customizable in the language files (lang/messages_en.yml / lang/messages_de.yml).
📊 PlaceholderAPI
TrialTimer supports PlaceholderAPI (optional — works without it too).
| Placeholder | Description |
|---|---|
%trialtimer_cooldown_minutes% |
Configured cooldown in minutes |
%trialtimer_cooldown_seconds% |
Configured cooldown in seconds |
%trialtimer_cooldown_ticks% |
Configured cooldown in ticks |
Use these in scoreboards, holograms, or any plugin that supports PlaceholderAPI.
🌍 Language Support
TrialTimer ships with English and German out of the box.
Switch via language: de in config.yml.
Language files are saved to plugins/TrialTimer/lang/ and can be edited freely.
🔌 Compatibility
| Software | Supported |
|---|---|
| Paper 1.21.x | ✅ |
| Purpur 1.21.x | ✅ |
| PlaceholderAPI | ✅ (optional) |
| Spigot | ❌ |
| Folia | ❌ |
Note: The NMS reflection targets Mojang-mapped Paper/Purpur builds (1.21+). Enable
debug: trueif you run into issues — it logs the exact field names found at runtime.
📄 License
MIT — free to use, fork, and redistribute.