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Rescue in Brussels: The Vanishing of Detective X

Rescue in Brussels: The Vanishing of Detective X

Brussels is buzzing—but beneath its charming streets, a dangerous game unfolds. You’ve been summoned by the legendary Detective X to discuss a chilling case: a mysterious kidnapper cloaked in black. But before you even meet... Detective X vanishes. Coincidence? Or a trap?

Now the fate of the city’s greatest mind rests in your hands. Follow the kidnapper’s cryptic clues through the heart of Brussels, solve real-world puzzles, and uncover hidden secrets before time runs out. 

This walking adventure is perfect for friends and families ready to step into the story. Explore the city, test your wits, and connect over an unforgettable rescue mission. Will you crack the case before it’s too late?

⚡ Instant🛡 Money-back⏱ 1–2 hrs🧩 10 puzzles
🌐 Play in 🇬🇧 English · 🇫🇷 Français
4.4346 reviews
€12.99

per player · one-time · yours forever

An evening of adventure for less than two coffees

How many players?
1

Each player races on their own phone.

Instant access, unlock 24/7
Start whenever you like
It's yours forever, replay anytime
Get this quest

Full refund until you start playing · 10 stops · 1–2 hrs · 2.5 km

Staying a few days in Brussels? All 4 Brussels quests for €39.99 — pays for itself by quest #4. See the City Pass

Places you will visit

10

It will take you

80-110 mins

You will walk

3290 steps

Total distance

2.5 km

Highlights

  • Discover famous and less famous Belgian symbols

  • Find out about Einstein's links with this lovely capital

  • Psychoanalyze one of the most famous Surrealist Belgian painters of the 20th century

  • Impress your friends with your newly acquired knowledge about the Art Nouveau current

  • Learn how to escape death 7 times from the Belgian inventor of the saxophone

Bring your crew

Race to the finish.

Everyone plays on their own phone — race solo, as a couple, or with a crew of any size. First to solve every clue takes the crown.

Invite your whole crew — 2 friends or 200, split into teams.

Adventure

Your pace, no timer

Escape

Beat the clock

Plays offline at your own pace — live group races need a connection.

Final leaderboard

Sam47:12
2Alex51:38
3You58:05

The mission: Your story in Brussels

The greatest detective of all time, Detective X, has invited you to Brussels to talk to you about a case he has been working on for the past few months. 

It's about a mysterious serial kidnapper dressed in a black coat. But as soon as you arrive... Mr. X himself disappears! Could there be a connection between the two? 

The kidnapper has planted clues all over Brussels and so it falls on your shoulders to discover the secret and rescue Mr. X! Hurry up! He may be in great danger!

Tips & Recommendations

👟

Wear Comfortable Shoes

You will be walking throughout the city, so comfortable footwear is essential for enjoying the experience.

🔋

Charge Your Phone

Make sure your smartphone is at least 60% charged. The quest runs through the Questo app, and you will be using it throughout.

🌤️

Check the Weather

This is an outdoor activity. Bring an umbrella or sunscreen depending on the forecast.

📸

Bring a Camera

You will discover photogenic locations and hidden gems perfect for capturing memories.

💧

Stay Hydrated

Bring water, especially during warmer months or longer quests.

👥

Play with Friends

Quests are more fun with friends or family. Each player who wants to play on their own phone needs their own access.

Ratings and Reviews

4.43

46 ratings

5 Stars
52%
4 Stars
39%
3 Stars
9%
2 Stars
0%
1 Star
0%
Reviews
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Laura Burchell

23 May 2026

M & K Honeymoon

16 Dec 2025

sammy

02 Sep 2025

Lise

14 Aug 2025

SuriC

14 Aug 2025

Beat the best: Top Brussels explorers

Justina PetkelytėRookie
3000 XP
nömsRookie
3000 XP
PUK CODE
PUK CODERookie
3000 XP
Created by
Radu Otopeleanu

Every place tells stories. Some of those stories are very old, some of them are even forgotten and buried. Like a reanimator, I bring them back to life, that is my joyful struggle.

Frequently asked questions

Is Rescue in Brussels: The Vanishing of Detective X self-guided?
Yes. The Questo app guides you between locations without a tour guide or fixed departure. You can start when it suits you and pause if needed.
Where does Rescue in Brussels: The Vanishing of Detective X start and finish?
It starts at Hotel — De Brouckere, 1000 Bruxelles, Belgium and finishes at Musical Instruments Museum — Rue Montagne de la Cour 2, 1000 Bruxelles, Belgium. The route is approximately 2.5 km and includes 10 location-based puzzles.
How many accesses does our group need?
This classic quest sells access per device and player. Each person who wants to solve clues on their own phone needs their own access.
What language is Rescue in Brussels: The Vanishing of Detective X available in?
It is currently available to play in English, French.

Compare Questo vs. Guided Walking Tours

Flexibility

Regular Guided Tours

Fixed schedules & no pausing

Questo

Start, pause, and resume anytime

Privacy

Regular Guided Tours

Crowds of up to 30 strangers

Questo

Private experience for your group only

Pricing

Regular Guided Tours

$30-$40 per person

Questo

Affordable per-group pricing

Availability

Regular Guided Tours

Requires advance booking

Questo

Instant access 24/7/365

Experience

Regular Guided Tours

Passive listening to a guide

Questo

Active gamification; you solve the mystery

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