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Uncover the muletiers' secret oath that shielded Andorra's iron trade from royal spies and bandits. Decode hidden signs along the Route du Fer to expose the clandestine network.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the 17th-19th centuries, Andorra's rugged valleys hid one of Europe's most vital iron empires
You are Joan Areny, an Andorran muleteer, on a secret mission for the co-princes of Andorra in 1692.
You begin at the Pont de la
Follow the traces of the muleteers who crossed the Pyrenees in the 17th century, carrying salt, iron and diplomatic secrets between France and Spain.
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
« Andorra is free by the grace of Charlemagne, and will remain so by the will of its children. »— Traditional Andorran motto, 17th century
Andorra la Vella keeps the secrets of its past as a Pyrenean crossroads at the Pont de la Margineda, built in the 12th century. This Romanesque bridge with a single arch, 33 meters long, was the only safe passage over the Valira for caravans loaded with Catalan iron and Cardona salt. Joan Areny met his French contacts there, exchanging news of the War of the League of Augsburg that had been ravaging Europe since 1688. Andorran muleteers took advantage of their neutrality to trade with both sides, sometimes carrying diplomatic messages hidden in their mules' pack saddles.
Plaça Guillemó leads you to the political heart of Andorra, where syndics negotiated commercial privileges with French and Spanish representatives. This square was the gathering point for caravans before climbing to the passes, notably the Port d'Envalira which peaks at 2,408 meters. Muleteers checked their loads of Roussillon textiles and Mediterranean spices, precious goods that justified the risks of the journey. Casa de la Vall, visible from the square, already housed the archives of the neutrality oath signed in 1278 by Roger-Bernard III of Foix and Pere d'Urtx, Bishop of Urgell.
Església de Sant Esteve, built in the 12th century then remodeled in the 16th, was the mandatory spiritual stop for muleteers before their departure to dangerous passes. Joan Areny prayed there to Saint James, patron of travelers, before the baroque altarpiece installed in 1621. This Romanesque church preserves 12th-century frescoes depicting Christ in majesty, witnesses to the sacred art that united Pyrenean valleys despite political borders. Muleteers left their offerings there, often silver coins minted in Puigcerdà or Perpignan workshops.
Carrer Major was the commercial artery where muleteers sold their goods to Andorra la Vella's bourgeoisie. This paved street housed blacksmith shops that repaired mule shoes, rope makers who braided pack saddle straps, and innkeepers who lodged caravan drivers. Joan Areny negotiated there with Pere Moles, a wealthy Andorran merchant who financed expeditions to Toulouse and Barcelona. The granite houses with sculpted lintels mostly date from the 17th century, when cross-border trade enriched Andorra's patrician families.
Your journey ends at Plaça del Poble, where Joan Areny discovers that the muleteers' oath was not a document, but an oral tradition passed down through generations. This modern square, built in 1991 for the 700th anniversary of the Paréages, symbolizes the continuity of Andorran independence. You leave with the certainty that Andorra la Vella remains faithful to its heritage as a free land, where today's muleteers have become bankers and merchants, perpetuating the spirit of independence that characterizes this unique principality.
5-10 curated sites across the territory
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.
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Uncover the secret paths of the muleteers who shaped Andorra's economic history.
Interpret the hidden codes and symbols in old documents revealing clandestine routes.
Discover the importance of local alliances for mountain survival and trade during periods of isolation.
The mountains guard the secrets of those who know how to cross them.
Reconstruct the muleteers' oath.
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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Follow the traces of the muleteers who crossed the Pyrenees in the 17th century, carrying salt, iron and diplomatic secrets between France and Spain.
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

Decipher the 1278 paréage treaty that forged Andorra's dual sovereignty. Uncover the secret pact between bishop and count that shaped a nation—and the hidden clause that nearly tore it apart.

Uncover the hidden codes left by the passeurs, Andorra's shadowy smugglers, to reveal their ultimate secret cache before it vanishes forever.
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💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.