Escape room: The Hacker Who Locked the Server
A cyber escape room for teens and adults: decode binary, a Caesar cipher and a Mastermind code to free a locked server. A real brain test.
The story
A mysterious hacker locked the school server just before the grades were sent out. He left a trail of puzzles and claimed nobody could solve them. Prove him wrong and free the server.
It turns out the “hacker” is actually the caretaker’s robot vacuum, which connected to the network by mistake.
5 story stations · online you can pick a level that adds more locks.
Run it at home or in class
What to prepare
- Printed station sheets
- A binary place-value chart (1, 2, 4, 8, 16, 32, 64)
- Pens and scrap paper
- An old laptop or a box with a code lock for the end
Tips for the facilitator
- Print the binary chart large and stick it on the wall.
- At the Caesar station, lay out a paper strip with the alphabet so it’s easy to count back.
- At the code station, let each team member check a different clue; it’s great for teamwork.
Difficulty level for “The Hacker Who Locked the Server”
The story clues stay the same on every level; harder levels add more locks in between. You can ask for a hint at every stage.
💻 The Hacker Who Locked the Server
A mysterious hacker locked the school server just before the grades were sent out. He left a trail of puzzles and claimed nobody could solve them. Prove him wrong and free the server.
0 of 6 stages solved
Stage 1: Binary screen
1/6The number 101101 is flashing on the screen. It’s a binary number: each digit stands for a value, from right to left: 1, 2, 4, 8, 16, 32. To turn it into an ordinary number, add up the values of every place that has a 1. For example: 110 in binary = 4+2 = 6.
Facilitator guide: 💻 The Hacker Who Locked the Server
What the room practises
Binary, the Caesar cipher, Mastermind logic and number sequences.
The 5 stations (without the answers)
- Binary screen: Which ordinary number is hiding in 101101?
- Caesar cipher: What is the original word?
- A three-digit code: What is the password? (3 digits)
- The login log: What is the next number?
- Freeing the server: What is the binary code?
Preparing and printing
On the easy level the printed kit has 7 pages: a facilitator sheet with the opening story, the setup list and every answer, plus an A4 card for each of the 6 stages. Besides printing, get ready: a binary place-value chart (1, 2, 4, 8, 16, 32, 64) and an old laptop or a box with a code lock for the end.
Most important: Print the binary chart large and stick it on the wall.
Age and group size
Best with teams of 4–6 players. With more people, split into two teams racing the clock, each with its own kit.
Giving hints in this room
Online the hints open one at a time; in the printed kit they sit in the facilitator table next to each answer. Give the first hint after a couple of minutes of silence, not at the first wrong guess.
Frequently asked questions
What age is “The Hacker Who Locked the Server” for, and how long does it take?
It was written for teens 13+ and adults, at hard difficulty, and usually takes 35–45 minutes. It has 5 story stations, and online you can choose between three difficulty levels that add more locks.
What do I need to run “The Hacker Who Locked the Server”?
A printer and these props: Printed station sheets; A binary place-value chart (1, 2, 4, 8, 16, 32, 64); Pens and scrap paper; An old laptop or a box with a code lock for the end. The printable kit includes a facilitator sheet with every answer and a card for each stage.
What if the players get stuck?
Every stage has graded hints. Online they open one at a time; in the printed kit they sit next to each answer on the facilitator sheet. The first hint never gives the answer away.
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