Level 6 · Inventor's Lab

Mission 582

The 10-Part Challenge: A Burglar Alarm on a Budget

Badge: Penny Pincher

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Build an alarm with a light, a sound and a moving block in 10 parts max.

The Lab's bank is nearly empty. Build a full burglar alarm with 10 parts and 30 Lab Coins… or go bust.

  • New skill Powering several parts from one block
  • Level 6 · Inventor's Lab
  • Difficulty Intermediate
  • Mode Creative
  • Time 30–45 min
  • Ages 13+

What you’ll build

Build a burglar alarm that lights a lamp, plays a sound and moves a piston, all on a tight parts budget. Build any version first, count every piece and its cost, then use a clever trick with a pressure plate to slash your parts list.

Finish line: Your alarm lights, sounds and moves on a tiny parts budget, and you have the receipt to prove it.

Bonus challenge: Get it down to just 4 parts. Then swap the plate for a tripwire: 2 hooks at 2 coins each (string is free). Which costs more?

You’ll need

  • Pressure plate
  • Redstone lamp
  • Note block
  • A piston
  • Redstone dust
  • A family member to test it

You choose

  • My alarm's name
  • What it guards
  • My bet for how few parts it takes

Stuck?

  • A pressure plate powers the block it sits on, and that block powers anything touching it.
  • Silent alarm? The note block needs an empty block of air above it.
  • Count every single dust as one part when you add up your total.

For grown-ups

Get this mission

This mission is in Mission Pack 58. Each printable has the full steps, a Plan & Log page and a parent page.

Print one mission at a time. You never need to print everything.

Played on Minecraft Bedrock on iPad. Buttons can differ on other devices and versions.