Zamora — El Cid's Oath Betrayed
Uncover the traitor who broke Zamora's oath during El Cid's siege. Decode clues across Romanesque landmarks to expose Bellido Dolfos and reclaim lost honor.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1072, Zamora's walls withstood El Cid's relentless siege for seven months under the oath of loyalty to King Alfonso VI
The Oath of Zamora — Honor, fratricide, and loyalty in the time of El Cid
In 1072, Zamora's walls withstood El Cid's relentless siege for seven months under the oath of loyalty to King Alfonso VI. But betrayal shattered the pact: Bellido Dolfos, a cunning defender, assassinated King Sancho II at the Portillo de la Traición, ending the assault and altering Spain's destiny. Whispers of a hidden cipher in the city's Romanesque stones guarded the traitor's full confession and a sworn relic of vengeance. Now, the shadows of Zamora's ancient fortress, cathedral, and bridges conceal the fragmented code of 'Le Serment de Zamora.' From the Castle of Zamora to the Puente de Piedra, decipher inscriptions, align symbols on statues like Viriato and Merlú, and probe church portals to reconstruct the betrayal's truth. Outwit the echoes of treachery—solve the oath's enigma before the ghosts of the siege claim their due.
A game, a guided tour and a city guide — all in one
You're not just buying an escape game. You're carrying a living city guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding step by step as you walk.
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
« « Listen, Castilians, to what good Rodrigo says: if any of you know or hear that King Sancho sought or participated in his brother's death, I swear on this sword, he shall be my enemy. » »— The Song of Roland, adaptation of a passage related to the Oath of Santa Gadea (1072)
The Battle of Zamora and the Fratricidal Betrayal
In 1065, upon the death of Ferdinand I of León, the kingdom was divided among his sons: Sancho II received Castile, Alfonso VI León, and García Galicia. His daughters, Urraca and Elvira, received the important cities of Zamora and Toro as appanages. Ambitious, Sancho II began to reunify the kingdom by force. After subduing his brothers, he laid siege to Zamora, held by his sister Urraca, who refused to yield. The heavily fortified city resisted heroically.
On October 7, 1072, as the siege dragged on, Sancho II was assassinated before the walls of Zamora by a Leonese nobleman, Bellido Dolfos, who allegedly acted on Urraca's orders. This brutal murder changed the course of history. Alfonso VI, exiled after his defeat against Sancho, was recalled to ascend the unified throne of León and Castile. However, the loyalty of the young Rodrigo Díaz de Vivar, the future El Cid, to his former lord Sancho, led him to demand a public oath from Alfonso VI, at Santa Gadea de Burgos, to affirm his innocence in the regicide. This event marked the legend of El Cid and the complexity of medieval intrigues.
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?
Medieval Intrigue
Dive into a thousand-year-old plot of betrayal and the quest for power.
Royal Drama
Uncover the dynastic stakes and passions that tore apart Castilian royalty.
In El Cid's Footsteps
Follow the path of the legendary Rodrigo Díaz de Vivar, witness and actor of this turbulent era.
Unravel the threads of the plot and restore El Cid's honor!
The truth behind the betrayal of Zamora awaits you.
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, WhatsApp, 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.
Avis des aventuriers
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Vous avez joué à le serment de zamora? Rendez-vous dans l'email reçu après votre partie pour laisser un avis vérifié.
Your turn to play
Join El Cid in his quest for justice, explore the key locations of the drama, and uncover a medieval secret that history tried to erase. Will you be astute enough to unravel the Oath of Zamora?
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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