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Build a lever code lock with decoys, then dare someone to crack it.
Six identical levers. One secret code. Flip the wrong one and the door stays sealed. Can anyone crack it?
- New skill Building a lever combination lock
- Level 6 · Inventor's Lab
- Difficulty Intermediate
- Mode Creative
- Time 50–70 min
- Ages 13+
What you’ll build
Build a wall of identical levers and pick a secret code, with a couple of sneaky decoys that lock everything if touched. Hidden torches and wiring decide whether the door opens. Test every wrong move, then dare a code breaker to crack it.
Finish line: Your lever lock only opens on the secret code, and you've timed every code breaker's attempt.
Bonus challenge: Add a lamp that flashes at a wrong try: it lights only when the line is powered AND a pressure plate in front of the panel is pressed.
You’ll need
- Levers
- Redstone torches
- Redstone dust
- Sticky pistons
- A code breaker
- A timer
You choose
- My secret code (1 = on, 0 = off)
- What the lock guards
- The prize for anyone who cracks it
Stuck?
- Opens with a wrong code? Check every code lever's torch joins the same dust line.
- Decoys not locking it? Each decoy lever must sit right beside that dust line.
- Write your code in 1s and 0s and keep it hidden, so you don't forget it.
For grown-ups
Get this mission
This mission is in Mission Pack 51 (Level 6: Inventor's Lab). Its printables arrive in the store soon. We release about one level a month.
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.