RandomChunk

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RandomChunk transforms newly entered chunks into something completely unexpected.

When a player enters a chunk that has not been processed before, RandomChunk selects one random Minecraft block and uses that material throughout the chunk.

Each chunk gets its own random block, while air remains unchanged by default.

For example:

• Chunk A → Stone
• Chunk B → Oak Planks
• Chunk C → Obsidian
• Chunk D → Diamond Block

The result is a simple but unpredictable way to explore your Minecraft world.

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✨ Features

Random Block Per Chunk

Each newly processed chunk receives one randomly selected Minecraft block.

The entire chunk uses the same selected material instead of choosing a different block for every position.

Automatic Block Selection

RandomChunk automatically detects valid Minecraft block materials available through the server API.

No large manually maintained block list is required.

Air is excluded from the random block pool.

️ Preserve Air & Terrain Shape

Air remains unchanged by default.

This means caves, ravines, holes, and other empty spaces remain visible while the existing terrain shape is preserved.

Configurable Bedrock

Bedrock replacement can be enabled or disabled.

Default:

Processed Chunk Tracking

RandomChunk remembers chunks that have already been processed.

With persistent storage enabled, processed chunk data remains available after a server restart.

Use:

to clear the processed chunk data.

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⚡ Performance

RandomChunk does not attempt to process an entire chunk in a single server tick.

Block processing is divided into batches to reduce sudden server load.

Available speed modes:

• FAST — 16,384 block positions/tick
• NORMAL — 4,096 block positions/tick
• SLOW — 512 block positions/tick
• CUSTOM — configurable processing speed

NORMAL is the default mode.

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Adaptive TPS Protection

RandomChunk can automatically reduce its processing speed when server TPS drops below the configured threshold.

Example:

This allows the plugin to slow down processing when the server is under heavier load.

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World Selection

RandomChunk can run in all worlds or only selected worlds.

All worlds:

Selected worlds:

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Commands

Alias:

Permission:

Default permission: OP

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Languages

RandomChunk includes six built-in languages:

• English —
  Code (Text):

  en
• Indonesian —
  Code (Text):

  id
• Vietnamese —
  Code (Text):

  vi
• Thai —
  Code (Text):

  th
• Russian —
  Code (Text):

  ru
• German —
  Code (Text):

  de

Change the language in :

All translations are stored in and can be customized.

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⚙️ Configuration

RandomChunk provides configuration for:

• Language
• Automatic startup
• One-time chunk processing
• Air replacement
• Bedrock replacement
• Block physics
• Maximum active chunks
• Processing speed
• Custom blocks per tick
• Adaptive TPS
• Enabled worlds
• Persistent chunk storage

The default configuration uses NORMAL speed and adaptive TPS protection.

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Installation

1. Download .

2. Put the JAR into:

3. Start or restart your server.

4. Configure:

5. Start RandomChunk:

That's it. Players can now explore the world and trigger the randomization of new chunks.

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Compatibility

Minecraft: 26.2

Server API: Paper / Bukkit API

Java: 25

Primary platform: Paper 26.2

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