🕒 No date to pick · Code valid 1 year · Play whenever you want
Get my code
1897: Decode the cryptic Zionist message from the First Congress balcony. Uncover Herzl's secret cipher hidden across Old Town landmarks before it's lost forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In August 1897, the Stadtcasino Basel's balcony became the epicenter of a historic turning point
You are a sharp-witted journalist, dispatched to Basel, Switzerland, in late August 1897, to uncover the hidden story of the First Zionist Congress.
You arrive as Theodor Herzl
Dive into Theodor Herzl's secret investigation in Basel in 1897, where a people's destiny unfolds behind the scenes.
« In fifty years, perhaps, certainly in a hundred years, everyone will recognize the rightness of this work. »— Theodor Herzl, Diary, September 3, 1897
Basel hosts the First World Zionist Congress in August 1897, orchestrated by Theodor Herzl from Hotel Les Trois Rois. The establishment founded in 1681 accommodates 208 delegates who came to debate creating a Jewish national home. Herzl writes in room 141 the notes that will become the Basel Program, founding text of the Zionist movement. Hotel corridors echo with discussions between Max Nordau, Parisian philosopher, and Chaim Weizmann, future President of Israel. You explore these refined salons where the idea of a State that David Ben Gurion would proclaim fifty years later is born.
Stadtcasino Basel becomes the theater for official Congress sessions from August 29-31, 1897. In this concert hall inaugurated in 1876, Herzl delivers his inaugural speech to delegates from Russia, Austria-Hungary and Western Europe. Max Nordau presents his report on European Jewish conditions, detailing Russian pogroms and the Dreyfus Affair shaking France since 1894. Hatikvah, future Israeli national anthem, resonates for the first time in an official setting under the golden stuccos of this hall where a people's future takes shape.
On Basel's Marktplatz, delegates meet between sessions to exchange in Yiddish, Hebrew and German. This medieval square, dominated by the red Town Hall built between 1504 and 1521, becomes the Congress's informal rallying point. You cross paths with Leo Pinsker, author of Auto-Emancipation in 1882, and Hermann Schapira who proposes creating a Hebrew university. The cobblestones witness passionate debates between political and cultural Zionists, a division that would mark the movement for decades.
Spalentor, Basel's medieval gate built around 1370, evokes European Jewish migrations that the Congress intends to organize. This fortified tower witnessed Jews expelled from Alsace in the 15th century, then those fleeing Russian pogroms in the 1880s. Herzl meditates here on the organized exodus he advocates in The Jewish State, published in 1896. Adjacent Spalenberg, with its patrician houses, shelters delegates from Southern European Sephardic communities, bringing their millennial traditions to debates on the future homeland's identity.
Your investigation concludes at Kunstmuseum Basel, where 19th-century European art reflects the Jewish emancipation the Congress aims to complete. Paintings by Camille Pissarro, Jewish Impressionist painter, stand alongside those of Arnold Böcklin, Basel symbolist contemporary to the Congress. You take away understanding of an event that transforms in three days the millennial aspiration of returning to Zion into a concrete political program. The Basel Program, adopted August 31, 1897, lays foundations for the State of Israel proclaimed May 14, 1948 by David Ben Gurion, former delegate of this founding Congress.
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. »
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.
The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.
Places tied to your adventure — optional entries, totally up to you · per person
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.
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.
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
Dive into the backstage of 1897 political intrigues.
Unmask the invisible forces that tried to influence history.
Understand the challenges and oppositions to the creation of a national home.
Uncover the hidden truth.
The fate of a vision depends on your insight.
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
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.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
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.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Same spirit: search, deduce, find. But here the "treasure" is a full story to piece together in eight stops. Each stop gives you a fragment of the final code. Eight fragments later, you've cracked it.
Usually 2 to 4 km of total walking, within 1.5 km as the crow flies from the start point. The route is designed to be walkable at a relaxed pace, no public transport needed.
Yes, from age 6 with an adult reading puzzles aloud, and from age 12 on their own. Kids love the "find the camera clue" part — it's very visual, gets them genuinely involved.
Three hint levels per puzzle, with a small increasing time penalty. If truly stuck after level 3, you can skip the step (45-min penalty). The point: nobody stays blocked and goes home frustrated.
Soyez le premier à partager votre expérience.
Did you play l enigme du balcon de bale? Check the email you received after your game to leave a verified review.
Dive into Theodor Herzl's secret investigation in Basel in 1897, where a people's destiny unfolds behind the scenes.
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
🪙+24 TripCoins granted with your booking
More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

Uncover the forbidden decrees and hidden relics from the Council of Basel's clash with the Pope. Decode clues across medieval landmarks to expose the schism's ultimate secret before it's lost forever.

Decipher the cryptic code Nietzsche hid in Basel's shadows before his descent into madness. Follow his professor's paths, unlock forbidden texts, and expose the philosopher's final secret threatening to resurface.

1897: Uncover the secret manuscript Herzl hid during the first Zionist Congress. Decode clues across Basel's Old Town to reveal a conspiracy that threatened the birth of a nation before it began.

Decode the secret messages hidden in Renaissance manuscripts by Basel's master printers. Solve Erasmus's cipher before the Inquisition silences the truth forever.

Decipher the hidden code in Basel's legendary 15th-century Dance of Death mural before the plague's curse returns. Uncover why the city's elite commissioned this macabre masterpiece—and what they wanted buried.
More destinations, tours & urban treasure hunts across the country
Medieval city and federal capital, guardian of the bear
Where a sparkling lake meets charming old town and vibrant modernity.
UNESCO watchmaking city, between art and precision
Between lake and mountains, a Swiss medieval jewel
Between lake and mountains, the pearl of the Swiss Jura.
Switzerland's legendary birthplace
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
18€. Navigation d'une heure vers la frontière franco-allemande, perspective unique sur les trois pays.
8€. Seule collection permanente sur l'histoire juive en Suisse, avec les archives du Congrès de 1897.
25€. Œuvres de Chagall et Monet dans un écrin architectural de Renzo Piano à Riehen.
45€. Plus ancienne auberge de Bâle (1421), spécialités rhénanes dans un décor Renaissance.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.