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Uncover the hidden conspiracy among Vienna's revolutionary architects. Decode their coded manifestos etched in facades to expose the plot that shook the empire in 1913.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the heart of Vienna's Innere Stadt, 1913, a cabal of visionary architects—Otto Wagner, Josef Hoffmann, and their Secession allies—plotted a radical uprising against the decaying Habsburg empire
You are a promising young architect in Vienna, 1875, a protégé of Theophil Hansen.
Your mission is to decipher the architectural codes left by Hansen's contemporaries in Vienna
Immerse yourself in Vienna, an expansive city and ornament of Europe, to uncover the secrets of its master architects who shaped its Neo-Renaissance and Neo-Gothic facade.
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.
Places tied to your adventure — optional entries, totally up to you · per person
« Vienna urbs diffusa, Europae decus »— Official motto of Vienna (Vienna, expansive city, ornament of Europe)
Your quest begins at Café Central, Herrengasse 14, a venue opened in 1876 within the Palais Ferstel, which served as a meeting point for Viennese intellectuals in the early 20th century. Sigmund Freud and Leon Trotsky debated there in the 1910s. Designated a historic monument in Austria since 1975, its 400 m² interior with Neo-Gothic decor immediately immerses you in the atmosphere of the Ringstraße architecture of the 1860s. Observe the facade details carefully: they hold the first clue of your journey, an enigma about the Neo-Renaissance style that characterizes this period in Vienna's history.
Adjacent to Café Central, the Palais Ferstel, built in 1856 by architect Heinrich von Ferstel, is a masterpiece of Italian Neo-Renaissance style. This 6,500 m² building once housed the Vienna Stock Exchange until 1892, before becoming an intellectual hub. Its inner courtyard with a 20-meter high arcade exemplifies the technical prowess of the era. Exploring its galleries, you'll discover how the architect integrated hidden symbols, linked to the commemoration of the post-1848 liberal era, a crucial fact for understanding this Vienna walking tour and its heritage.
As you head towards the Austriabrunnen on Herrengasse, you encounter a fountain erected in 1890 by Edmund Hellmer, an artist who also decorated the Palais Epstein. Standing 8 meters tall, it represents the allegory of Austria surrounded by allegorical figures of the provinces. Funded by the municipality to celebrate the liberal spirit, this artwork is a testament to Vienna's cultural vibrancy. Your scavenger hunt then leads you to Minoritenkirche, a Gothic church begun in 1276 under Ottokar II of Bohemia, whose Neo-Gothic facade was completed in 1780. Its 68-meter spire and a 1420 copy of the Mariazell Madonna mark the city's medieval past, contrasting with the surrounding 19th-century architecture.
The route then takes you to Palais Epstein, built between 1870 and 1873 by Theophil Hansen, another giant of the Neo-Renaissance style. Commissioned by banker Moritz von Epstein, its 50-meter wide facade on Herrengasse and its 24 interior allegorical statues, also by Hellmer, make it a significant historic monument in Austria. Leaving this palace, you cross Rathauspark, a 13,000 m² public park opened in 1873. It contains 18 monuments, including one to Johann Strauss inaugurated in 1921, and has been a site of demonstrations since the 1848 Revolution, symbolizing civic life at the heart of Vienna.
Your exploration culminates at Heldenplatz, a 20,000 m² square created between 1810-1815 in front of the Hofburg, flanked by the Archducal Palaces of the 1860s. It was here that Adolf Hitler delivered his speech on March 15, 1938, a dark moment contrasting with the grandeur of the Maria Theresia monument erected in 1888. Finally, Michaelerplatz, a historic square since the 13th century, with its 1885 Neptune Fountain by Rudolf Weyr and St. Michael's Church (1665-1737) with its 58-meter dome, concludes your interactive tour of Vienna. You leave with a deeper understanding of Vienna's history, the figures who built it, and the secrets it holds, having unlocked the mysteries of these Vienna monuments and the city's heritage.
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?
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Immerse yourself in the atmosphere of Viennese cafés, iconic places for plots and political debates.
Follow in the footsteps of Trotsky and Lenin, architects of 20th-century revolutions.
Uncover a secret manifesto that shaped the destiny of Europe and beyond.
The fate of empires was forged to the clinking of cups.
Vienna, 1913. Every café table harbored a conspiracy.
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.
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.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
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.
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).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
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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Immerse yourself in Vienna, an expansive city and ornament of Europe, to uncover the secrets of its master architects who shaped its Neo-Renaissance and Neo-Gothic facade.
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
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The tragic secret of the Habsburg empire
Esterházy Palace, jewel of Burgenland
The baroque abbey, jewel of the Wachau
On the Danube's banks, where history meets stone.
UNESCO city, where medieval history meets modern design
Between Danube, modern art and Austrian history
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
16€. Admirez les collections des Habsbourg, incluant des œuvres de Bruegel l'Ancien et Vélasquez, dans un bâtiment de style néo-Renaissance.
8-12€. Goûtez la célèbre Sachertorte originale dans le cadre historique de l'hôtel Sacher, une institution viennoise depuis 1832.
18€. Explorez les appartements impériaux de Marie-Thérèse et la collection Sissi au cœur de l'ancienne résidence impériale de Vienne.
25€. Découvrez les détails architecturaux des palais et monuments de la Ringstraße, planifiés par Heinrich von Ferstel et Theophil Hansen, avec un guide local.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.