Portsmouth Harbor — Decipher the Privateer's Secret Ledger
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Portsmouth, New HampshirePortsmouth Harbor — Decipher the Privateer's Secret Ledger
📍 Portsmouth, New Hampshire·🕐 2h30 – 3h·📍 ~2.5 km
Also available as:HistoricalMysteryRomanceSupernaturalSpy thriller

Portsmouth Harbor — Decipher the Privateer's Secret Ledger

Uncover the hidden accounts of Portsmouth's Revolutionary privateers. Decipher coded entries in a lost merchant ledger to expose a conspiracy of war profiteering and smuggled fortunes.

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

Difficulty
·From age 12 years
Starting point :Strawbery Banke Museum (in front of the main entrance)

Portsmouth Harbor was the beating heart of American privateering during the Revolution

8
stages
~2.5 km
route
2h30 – 3h
at your pace
🚶
walking

Portsmouth Harbor — Decipher the Privateer's Secret Ledger

🎭Your Mission

You are a confidential agent for the Continental Congress, autumn 1776, in Portsmouth.

Your mission, entrusted by William Whipple, a signer of the Declaration of Independence and a maritime merchant,

Dive into the heart of Portsmouth, New Hampshire, to decipher the secrets of a privateer's ledger that shaped the maritime history of the American Revolution.

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

Visit the Strawbery Banke Museumoptional
€23. Discover 40 historic buildings from 1695 to 1954 and the daily life of Portsmouth.
Optionnel
/pers.
Explore the John Paul Jones House Museumoptional
€10. Visit the 1758 home where the father of the US Navy, John Paul Jones, resided after his naval victories.
Optionnel
/pers.
Fresh Seafood Tasting by the Harboroptional
Various prices. Savor Portsmouth's local specialties, famous for its maritime history and seafood.
Optionnel
/pers.
Guided Tour of Market Square Art Galleriesoptional
Free. Discover works by local artists in Portsmouth's historic heart, surrounded by 18th-century buildings.
Optionnel
/pers.
Budget if you do them all / pers.~0

The story that haunts this land

Your quest for the ledger begins at the Strawbery Banke Museum, an open-air museum opened in 1954 in the historic Puddle Dock neighborhood. This 10-acre site houses 40 restored buildings dating from 1695 to 1954, including the Pitt Tavern built in 1766. It is here, at the heart of the daily lives of Portsmouth's working classes from the colonial period to World War II, that you search for the first traces of the mysterious privateer. The colonial houses and maritime atmosphere of this place, a key port for trade and shipbuilding from the 17th century, immerse you in the ambiance of the era.

Nearby, the Warner House, a Georgian house built in 1714 for Archibald Macpheadris, a wealthy Scottish merchant involved in transatlantic trade, reveals further clues. This residence, designated a National Historic Landmark in 1965, is famous for its oldest colonial murals in North America, restored in 1932. It was home to merchant families who profited from privateering during the American Revolutionary War, a perfect context for a privateer. Your route then takes you to the Old North Cemetery, founded in 1716, the oldest in Portsmouth still in use. Among its more than 1100 graves, you discover those of William Whipple, a signer of the Declaration of Independence, and John Langdon, Governor of New Hampshire and builder of private ships during the Revolution. The epitaphs of captains and sailors reflect Portsmouth's maritime history, and perhaps, hidden messages.

Your investigation leads you to the John Paul Jones House, built around 1758. John Paul Jones, the father of the US Navy, resided here from 1781 to 1783 after his naval victories, including the capture of British ships. Designated a National Historic Landmark in 1973, this house is intrinsically linked to the exploits of privateers against the British, an essential place to understand your character. Next, Market Square, Portsmouth's central square since the 18th century, awaits you. The heart of the historic commercial district, it was the site of markets as early as 1695 and a gathering place during the American Revolution. Surrounded by buildings dating from 1780 to 1820, and listed on the National Register of Historic Places in 1981, it is close to the wharves where maritime trade flourished, a mandatory stop for a privateer.

Continuing your journey, you arrive at Prescott Park, a 22-acre park created in 1930 on the banks of the Piscataqua River. Named after Joshua Prescott, it offers stunning views of Portsmouth Harbor, a historic maritime hub for privateers during the colonial wars. Formerly 18th-century family gardens, this place allows you to imagine the bustling activity of the port. Your next stop is the Portsmouth Athenaeum, a library and museum founded in 1816. Its 1813 Federal-style building houses 30,000 rare volumes and a collection of maritime newspapers from 1760. Its founding members were often linked to the merchant elite involved in privateering, an ideal place to find archives. Finally, the African Burying Ground Memorial, dedicated in 2003, commemorates the African cemetery used from 1700 to 1820. This site honors the first Africans brought as slaves or sailors to Portsmouth Harbor as early as 1645, reflecting the dark maritime history of transatlantic trade and the intertwined lives of free and enslaved sailors.

By exploring these historic sites in Portsmouth, New Hampshire, you piece together the puzzle of the privateer's ledger. Each monument, from the Strawbery Banke Museum to the Portsmouth Athenaeum, brings you closer to the truth. This thematic circuit offers a deep immersion into New Hampshire's heritage, revealing little-known aspects of Portsmouth's role in the American Revolution and maritime trade. You leave the city not only with the deciphered secret of the ledger but also with an enriched understanding of Portsmouth's history, its iconic figures like John Paul Jones and William Whipple, and its status as a National Historic Landmark. An interactive tour and GPS treasure hunt that transform a simple walk into a true historical exploration.

1623
Founding of Strawbery Banke, the first permanent European settlement in Portsmouth.
1775
Beginning of the American Revolution. Portsmouth becomes a vital center for shipbuilding and privateering.
1783
Signing of the Treaty of Paris, marking the end of the American Revolution and the independence of the United States.

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

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

Starting point
Strawbery Banke Museum (in front of the main entrance)
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~2.5 km
Historic downtown
Accessibility
Partial
Cobblestone streets
🌐
Languages
17 languages
Built-in translation

Why this route?

⚓️

Maritime Adventure

Immerse yourself in the bustling atmosphere of Portsmouth's great colonial port, cradle of the American navy.

🏴‍☠️

Revolutionary Intrigues

Follow in the footsteps of privateers and patriots who risked their lives for American independence.

📜

Colonial Secrets

Decipher hidden messages and forgotten symbols to reveal an unknown chapter of history.

The rebellious spirit of the seas

Portsmouth, cradle of liberty.

★ 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.

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Your turn to play

Dive into the heart of Portsmouth, New Hampshire, to decipher the secrets of a privateer's ledger that shaped the maritime history of the American Revolution.

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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