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Decipher the hidden codes embedded in four colonial missions to expose the Franciscans' secret strategy for controlling the frontier and converting indigenous populations.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the early 18th century, Spanish Franciscan friars arrived in San Antonio with a dual mandate: evangelize the native Coahuiltecans and fortify Spain's grip on the northern frontier of New Spain agai
You are Fray Isidro Félix de Espinosa, chronicler of the missions, in San Antonio, 1718, tasked with documenting the truth behind its founding.
Your mission: decipher
Delve into the layered past of San Antonio, where the stones of Franciscan missions whisper the ambitions of a colonial utopia in the heart of Texas.
Your quest begins at The Alamo (Mission San Antonio de Valero), located at 300 Alamo Plaza, San Antonio, TX 78205. Founded in 1718 by Franciscan missionaries, this mission was the starting point of the San Antonio mission system. Although later famous for the Battle of the Alamo in 1836 during the Texas Revolution, its original dimensions of 32 meters wide and 40 meters long for the main chapel attest to a religious and colonial ambition. Here, the first clues reveal the motivations of Fray Antonio de Olivares, its founder, and the challenges of evangelization in New Spain. The Alamo, inscribed as a UNESCO World Heritage Site in 1978, marks the beginning of your exploration of the Spanish Colonial Missions.
Continue to the San Fernando Cathedral, built between 1738 and 1750 by Spanish settlers. In the heart of historic San Antonio, this cathedral is the oldest in Texas and remains in operation. It was also inscribed as a UNESCO World Heritage Site in 1978, as an integral part of the mission system. Its crypt holds presumed remains of Alamo fighters, highlighting the unbreakable link between faith and conflict in San Antonio's history. The nearby Spanish Governor's Palace, built around 1749 and the oldest civil building in Texas, reveals the intertwining of spiritual and temporal power in this Texas frontier province.
The route then leads you along the San Antonio River Walk (Paseo del Río), a promenade developed from 1938. Approximately 4 km long, it connects the main historical monuments of San Antonio, offering a unique perspective on the city's urban development. The restaurants and shops that line the River Walk today contrast with the wild landscapes that Franciscan missionaries encountered. Following the river, you reach Mission Concepción, founded in 1731. Its chapel, built between 1755 and 1755, still preserves colonial-era frescoes on its interior walls, a rare testament to the religious art of the period, and is part of the UNESCO World Heritage Site 1978.
Further south, at 6519 San Jose Drive, stands Mission San José, the second mission established in 1720, about 8 km from downtown San Antonio. Also inscribed as a UNESCO World Heritage Site in 1978, its missionary activities officially ended in 1824. After serving as barracks and a refuge, it was restored in the 1930s. Nearby, Mission San Juan Capistrano, founded in 1731, with its chapel built between 1756 and 1762, continues to illustrate the perseverance of the builders. These edifices are emblems of Texas's heritage, Texas Historical Landmarks that dot the Mission Trail.
Finally, your exploration concludes near the Espada Aqueduct, built between 1731 and 1745. It is the only intact Spanish colonial aqueduct in North America, measuring approximately 240 meters with its stone arches. Still functioning for local agricultural irrigation, this aqueduct is a striking example of the ingenuity of the Franciscan Missions in supporting the communities of San Antonio. Inscribed as a UNESCO World Heritage Site in 1978, it embodies the utopian vision of the missionaries to create a sustainable civilization. Completing this thematic circuit, you will not only have discovered the history of San Antonio but also understood the lasting legacy of these monuments and their role in world heritage.
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
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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Track down clues left by missionaries to find the secret blueprints of an ideal community.
Explore the five historic San Antonio missions and their surroundings, witnesses of a bygone era.
Grasp the irrigation systems and construction methods that allowed these missions to prosper.
San Antonio's past calls to you...
Are you ready to decipher the dreams of its builders?
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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Delve into the layered past of San Antonio, where the stones of Franciscan missions whisper the ambitions of a colonial utopia in the heart of Texas.
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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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.

Accès libre. Découvrez des expositions interactives sur la vie quotidienne et l'impact des missions franciscaines dans le Texas colonial.
Prix indicatif : 20$. Admirez des collections de trophées de chasse et d'objets du Far West américain, à quelques pas de l'Alamo.
Prix indicatif : 25-40$. Goûtez aux spécialités locales dans ce restaurant historique, une institution depuis 1941 au cœur du marché de San Antonio.
Prix indicatif : 15$. Naviguez sur la San Antonio River pour une perspective différente des monuments historiques et de l'architecture coloniale espagnole.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.