⛏️ MassExtinction

"Minecraft, But Breaking a Block Breaks Them All."

Break one block, and every identical block on the server shatters with it. Kill one mob, and its entire species goes extinct. Scoop one bucket of water, and every ocean vanishes. This is chaos, gamified.

📖 What is MassExtinction?

MassExtinction is a chaos/challenge plugin built around a single rule:

Whatever happens to one block or mob, happens to all of them.

It's the "Minecraft, But..." YouTube challenge format, turned into a real server plugin — built to run safely on live servers without freezing your main thread, thanks to tick-batched, throttled processing under the hood.

⚡ Performance First

Naively looping over every block in every chunk on the main thread will crash your server. MassExtinction never does that.

Instead, every chain reaction runs as a throttled, tick-batched task:

• 🔍 Scan phase — walks a handful of loaded chunks per tick using lightweight chunk snapshots
• 💥 Break/Kill phase — processes a capped number of blocks/entities per tick
• 🛡️ Duplicate guards — the same material or mob type can't be chained twice at once (no runaway recursive loops)
• 🎯 Tool-aware drops — breaks use the same tool you used originally, so Fortune/Silk Touch still work correctly across the whole chain

All of this is fully configurable — see Configuration below.

📥 Installation

1. Download the latest .jar from this page (or use /massextinction update — see Commands)
2. Drop it into your server's /plugins folder
3. Restart the server
4. Done — chain reactions are on by default. Break something and watch the world unravel.

Requires Spigot or Paper 1.20+. Java 17 or newer.

💬 Commands

All commands are under /massextinction, with aliases /me and /massext.

Permission: massextinction.admin (default: op)

⚙️ Configuration

MassExtinction generates a config.yml in /plugins/MassExtinction/ on first run. Every option is commented inline. Here's the full file with explanations:

# =========================================
#  MassExtinction Configuration
#  "Minecraft, But Breaking a Block Breaks Them All"
# =========================================

# Radius mode for scanning loaded chunks around the origin block.
#   "global"  -> scan ALL currently loaded chunks in the world.
#   <number>  -> only scan chunks within that many chunks of the origin (e.g. 15).
# Use a numeric radius on larger/busier servers to reduce lag.
scan-radius: "global"

# How many blocks to break per server tick during a chain reaction.
# Lower = safer for low-end servers. Higher = faster chains but more lag per tick.
blocks-per-tick: 200

# How many chunks to scan (search for matching blocks) per tick.
chunks-per-tick: 5

# How many entities to kill per tick during a mass entity elimination.
entities-per-tick: 50

# Materials that will NEVER be chain-broken (grief/world protection).
blacklisted-blocks:
  - BEDROCK
  - BARRIER
  - END_PORTAL_FRAME
  - END_PORTAL
  - END_GATEWAY
  - COMMAND_BLOCK
  - CHAIN_COMMAND_BLOCK
  - REPEATING_COMMAND_BLOCK
  - STRUCTURE_BLOCK
  - STRUCTURE_VOID
  - JIGSAW
  - SPAWNER
  - REINFORCED_DEEPSLATE

# Entity types that will NEVER be mass-killed (safety — never touch players!).
blacklisted-entities:
  - PLAYER
  - ARMOR_STAND

# Feature toggles — turn individual chain-reaction types on/off.
features:
  block-chain-break: true
  explosion-chain-break: true
  entity-chain-kill: true
  fluid-chain-drain: true

# Prints extra chain-reaction info to console. Useful for tuning blocks-per-tick /
# chunks-per-tick on your hardware.
debug: false

# Checks Modrinth once on startup for a newer version — purely informational,
# never auto-downloads anything on its own. Use /massextinction update for that.
check-for-updates: true

# Whether the chain-reaction system is switched ON immediately when the server
# starts. Set to false if you'd rather leave it dormant until an admin runs
# /massextinction start.
auto-start: true

🔧 Config Reference

🧪 Example Configs

scan-radius: 10
blocks-per-tick: 40
chunks-per-tick: 2
entities-per-tick: 15

scan-radius: "global"
blocks-per-tick: 500
chunks-per-tick: 10
entities-per-tick: 100

auto-start: false

⚠️ Good to Know

• Explosions (TNT, Creepers) trigger the same chain reaction as manually breaking a block.
• Fluids don't drop items when chain-drained — only solid blocks drop loot.
• Command blocks, spawners, portals, and bedrock are blacklisted by default to protect world structures.
• /massextinction update stages the new jar in your plugins/update/ folder — you must restart the server to apply it.