Grand Socco — The Hydra Cipher
Tangier, 1944: Axis spies hid the Hydra Cipher in the Grand Socco medina. Decipher their secret invasion plan before it resurfaces and exposes a forgotten betrayal.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the shadowy alleys of Tangier's Grand Socco, 1944 was a powder keg of espionage
Grand Socco — The Hydra Cipher
You are a royal archivist, tasked by Sultan Mohammed V in 1947, to uncover fragments of a coded message before his historic April 9th speech.
Your quest will lead you through
Dive into Tangier's bustling alleyways to decipher a historical mystery that shaped modern Morocco's destiny.
The story that haunts this land
Your investigation begins at the Grand Socco, officially Place du 9 Avril 1947, a historic quasi-circular roundabout separating the old medina from Tangier's modern districts. It was right here that Sultan Mohammed V delivered his speech demanding Moroccan independence. The marble fountain, developed in 2005 and surrounded by palm trees and small flower gardens, is your first observation point. Explore the adjacent open-air central market, rich in spices, fresh fruits, and olives, a true commercial hub next to the Mendoubia Garden, a popular relaxation spot.
Continue your journey on Rue Semmarine, a main commercial street connecting the Grand Socco to Tangier's medina. This historic thoroughfare, lined with shops and souks, guides you towards the heart of the old city. Every step on this street, within Tangier's central district, brings you closer to the Petit Socco, a square that was once a lively meeting point for artists and intellectuals in the 1950s. Rue Semmarine is the essential passage for anyone wishing to immerse themselves in the heritage of the Tangier-Tetouan region.
Near the Petit Socco, in Tangier's medina, stands the Sidi Bou Abid Mosque, a historic place of worship built in the 17th century. This site is a crucial stage in your journey, a testament to Tangier's architecture and spirituality. As you walk through the narrow alleys leading to this mosque, you follow in the footsteps of past generations who shaped the identity of this port city. The medina of Tangier, recognized as a historical site in Morocco, provides an ideal setting for this exploration.
From the Petit Socco, take Rue de la Marine, a historic street descending towards the Port of Tangier Ville. This street, located about 800 meters from the Grand Socco, leads directly to the waterfront, where Tangier's port has always been a crossroads of trade and cultures. The writer Paul Bowles, a Tangier resident from 1947 to 1999, often walked these places, capturing the city's unique atmosphere in his works. This descent to the port offers a different perspective on Tangier's history.
Your journey concludes at the Kasbah of Tangier, a historic fortress dominating the medina, about 1 km from the Grand Socco. Once the residence of pashas, this key district of the old city now houses the Kasbah Museum, offering breathtaking views of the city and the sea. This interactive visit of Tangier will have allowed you to reconstruct the coded message, by exploring the monuments of Tangier-Tetouan and immersing yourself in the effervescence of its history. You leave with a deep understanding of Moroccan independence and the secrets that the city of Tangier has kept for decades.
A game, a guided tour and a heritage guide — all in one
You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
Keep access to the guide & game for 1 year. Come back any time, share it with friends.
« You will not leave this city the way you entered it. »
How does it work?
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
Want to go deeper?
Places tied to your adventure — optional entries, totally up to you · per person
The Route
8 stages through the city
The gameplay: AR, camera, hidden clues
At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.
The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.
How does it work with a group?
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.
- ✓All codes are independent — play at the same time OR separately, each team advances at its own pace.
- ✓Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
- ✓More than 10 phones or need a personalized quest? Discover custom tours.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Musical code and cryptography
Decipher an enigmatic musical score, key to a secret Axis plan.
Fast-paced urban investigation
Explore the bustling streets of Tangier to find the traces of a vanished agent and his vital message.
Geopolitics of the Strait of Gibraltar
Understand the strategic importance of Tangier and the Strait during World War II.
Music can hide the darkest secrets of war.
Decipher the opera of shadows before it is performed.
9 features nobody else has
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
AR treasure chest
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
AR narrator character
Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.
Magic golden letters
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Written + audio narration
Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.
360° radar + vibration
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Heritage storytelling
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
Progressive AI hints
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
AR selfie memento
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
Zero app to install
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Frequently asked questions
Q01Do I need to download an app?
No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.
Q02Does it work offline?
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
Q03How long does a game take?
1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.
Q04What happens if I'm stuck?
You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).
Q05What's the age range?
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Q06What if my city isn't in the catalogue?
Pre-register or contact us — we'll email you as soon as your city is live.
Q07What is augmented reality exactly?
Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.
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Your turn to play
Dive into Tangier's bustling alleyways to decipher a historical mystery that shaped modern Morocco's destiny.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
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Other escape games in Tangier, Morocco
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