Fort Brown — Decode Taylor's Lost Battle Plan
Decipher General Zachary Taylor's encrypted war strategy before the Mexican-American War erupts. Track down eight hidden dispatches across Fort Brown's ruins to expose the military secrets that shaped the Texas-Mexico border.
📱 1 to 10 phones · 1 team per phone · Independent codes
May 1846
1846: The Mystery of General Taylor's Lost Orders
May 1846. General Zachary Taylor's army stands poised on the Rio Grande, tensions with Mexico at a breaking point. A young scout carrying Taylor's encrypted battle orders vanishes during a night patrol near Fort Brown. Before capture, he managed to conceal eight coded messages across the fort's bastions, barracks, and earthworks—each one a fragment of a master strategy that could have prevented bloodshed or guaranteed victory at Palo Alto and Resaca de la Palma. Your mission: infiltrate the historic fort grounds, locate each hidden dispatch, crack the military cipher, and reconstruct Taylor's secret plan. What was the general truly plotting? Was it a defensive gambit to hold the line, or an offensive strike into Mexican territory? The answers lie buried in the fort's six-sided star fortification, where history's turning points were written in code. Time is running out. Mexican forces are massing across the river. Decode the messages, expose Taylor's strategy, and change the course of the war—or let history repeat itself.
« Our flag has been planted on the west bank of the Rio Grande. It is a portion of the territory of the United States. We have been attacked on our own territory. »— Président James K. Polk, message au Congrès, 11 mai 1846
The Blood Border: genesis of the Mexican-American War
The Mexican-American War, from 1846 to 1848, was a major conflict for the North American continent, rooted in the annexation of Texas by the United States in 1845. Mexico, which had never recognized Texas's independence, still considered the region its own. The dispute intensified over the border demarcation: the United States claimed the Rio Grande, while Mexico insisted on the Nueces River, further north. This contested zone became a powder keg, ready to explode.
The breaking point came in April 1846. General Zachary Taylor, on orders from President James K. Polk, moved his troops to the Rio Grande, building Fort Texas (future Fort Brown) across from Matamoros. An American patrol was attacked by Mexican forces north of the river, an event that served as a casus belli. War was declared, and Brownsville, with its Battles of Palo Alto and Resaca de la Palma, became the epicenter of the initial confrontations.
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
The Route
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.
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 · 14,90€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Border Conflict
Relive the tensions and strategies of the first battles of the Mexican-American War.
Secret Cartography
Use geographical and architectural clues to reconstruct a crucial battle plan.
The Lost Orders
Decipher a coded message to reveal General Zachary Taylor's military strategy.
Borders are not drawn by ink, but by blood.
Discover Brownsville's tumultuous past.
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, 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.
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Your turn to play
Join the expedition and unravel the military secrets that shaped the U.S.-Mexico border. Your insight is the key to history!
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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