Portsmouth — The Ranger's Stolen Cryptogram
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Portsmouth Historic Center and WaterfrontPortsmouth — The Ranger's Stolen Cryptogram
📍 Portsmouth Historic Center and Waterfront·🕐 2h – 2h30·📍 ~2.5 km
Also available as:HistoricalSpy thrillerMysterySupernatural

Portsmouth — The Ranger's Stolen Cryptogram

1777: John Paul Jones builds his corsair ship Ranger in Portsmouth. A vital cryptogram is stolen by a traitor. Recover the fragments, decipher the code, and unmask the spy before the ship sails into revolution!

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 10 years
Starting point :In front of the John Paul Jones House, 43 Middle St, Portsmouth

Portsmouth, New Hampshire, 1777

8
stages
~2.5 km
route
2h – 2h30
at your pace
🚶
walking

Dive into the heart of Portsmouth, New Hampshire, following the footsteps of the American Revolution and the maritime secrets that forged a nation.

Step into the shoes of a Continental Navy scout on a secret mission, tasked with deciphering a stolen cryptogram before it falls into the wrong hands. Your investigation begins in Portsmouth, a strategic port city in New Hampshire, where Commander John Paul Jones himself resided. On a walking route of approximately 1.5 km, which will take you around 135 minutes, you will traverse Portsmouth's most significant historical sites. At each stage, your phone becomes a crucial tool: augmented reality clues appear on colonial facades, ancient cobblestones, and monuments. An 18th-century maritime map emerges in Market Square, a coded message displays on North Church, and the ghost of a spy guides you through Ceres Street. This is a flexible, self-paced exploration, allowing you to uncover the history of Portsmouth and New Hampshire, from colonial foundations to the challenges of the young republic. More than an outdoor escape game: an interactive tour immersed in 250 years of history, with anecdotes revealed at each stop and confidential sites that classic guides often miss.

Les lieux que vous découvrirez

Les vrais lieux que vous explorerez au fil de l'aventure. Énigmes en réalité augmentée à chaque étape.

Far more than an escape game

A game, a guided tour and a heritage guide — all in one

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

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

Strawbery Banke Museumoptional
€20. Explore over 30 historic homes from the 17th to 20th centuries, including the 1766 Pitt Tavern building, and discover daily life in this colonial Portsmouth neighborhood.
Optionnel
/pers.
USS Albacore Museumoptional
€15. Visit the experimental submarine USS Albacore, launched in 1953 in Portsmouth, and learn about its role in American naval history.
Optionnel
/pers.
Seafood Tasting at Row 34optional
€30-50. Savor fresh oysters and local seafood specialties, reflecting Portsmouth and New Hampshire's rich fishing tradition.
Optionnel
/pers.
Piscataqua River Cruiseoptional
€25-40. Embark on a narrated cruise and admire the lighthouses and historic forts that protected the entrance to Portsmouth Harbor.
Optionnel
/pers.
Budget if you do them all / pers.~0

The story that haunts this land

Your quest for the cryptogram begins in front of the John Paul Jones House Museum, at 43 Middle Street. Built in 1758 in Georgian style, this historic home was the residence of the famous Commander John Paul Jones, founder of the American Navy, during the Revolution. This museum, open to the public since 1876, is an ideal starting point to grasp Portsmouth's naval significance. As a scout, you'll search here for the first clues left by your contact, perhaps hidden in the corners of this colonial architecture, which directly witnessed 18th-century naval war strategies.

Next, proceed to Prescott Park, a 6.5-acre waterfront park established in 1902 along the Piscataqua River, accessible from Marcy Street. Designed by landscape architect John Nolen, this location offers a peaceful contrast to the bustling port. Although later than the revolutionary period, the park, with its historic gardens and sculptures, overlooks a river that was essential to Portsmouth's trade and defense throughout the 19th century. Your mission leads you here to observe past and present river traffic, looking for coded messages that might travel by water.

The path then leads you to Market Square, the historic heart of Portsmouth, a commercial and administrative center since the 17th century. This square houses Portsmouth City Hall, a 19th-century neoclassical building, and has always been a place for civic gatherings. It is here, amidst the city's hustle, that your contact might have left a crucial clue. North Church, an Episcopal church built in 1732 with its characteristic steeple on Chapel Street, stands nearby. Its parish registers, dating from its founding, are treasures of information on Portsmouth's religious and civic life, potentially useful for your investigation.

Your journey takes you to the Old Custom House, a federal building from 1817 located at 147 Pleasant Street. This building housed the American customs administration, highlighting Portsmouth's commercial and port importance in the 19th century. Its restored federal architecture testifies to the prosperity of the era. Not far away, the Portsmouth Athenaeum, founded in 1817 on Athenæum Street, houses collections of manuscripts and documents covering local history since the 17th century. These places, symbols of intellectual and commercial heritage, are key points for a scout seeking to understand the information networks of the time.

Finally, your quest takes you to Ceres Street, a historic street in the port district, a center of maritime trade since the 18th century, then to Pierce Island Park, accessible by bridge. Ceres Street, named after the Roman goddess of agriculture, reflects the importance of grain trade and retains its period buildings. Pierce Island Park, a former fortified island converted into a public park, offers panoramic views of the Piscataqua River and historical perspectives on Portsmouth's coastal fortifications. It is here, facing the open sea, that the last fragment of the stolen cryptogram might finally reveal its secret, completing your mission in this New Hampshire maritime heritage site.

1747
Birth of John Paul Jones
1777
USS Ranger built and launched in Portsmouth
1779
John Paul Jones' victory at Flamborough Head

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.
🕒No date to pick · Code valid 1 year · Play whenever you want

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Get my code · 12€

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Practical info

Starting point
In front of the John Paul Jones House, 43 Middle St, Portsmouth
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
2 to 6 (optimal)
From age 10
📍
Distance
~2.5 km
Portsmouth Center
Accessibility
Partial
Some cobblestones and inclines
🌐
Languages
17 languages
Built-in translation

Why this route?

Naval Epic

Immerse yourself in the maritime history of the American Revolution.

🕵️

Espionage Intrigue

Thwart a plot and unmask a double agent.

📜

Historical Cryptogram

Decipher a secret message from Captain Jones.

The fate of the Revolution rests in your hands.

Will you live up to Captain Jones' legacy?

★ Innovation 2026

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.

Avis des aventuriers

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Your turn to play

Dive into the heart of Portsmouth, New Hampshire, following the footsteps of the American Revolution and the maritime secrets that forged a nation.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

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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