Antietam — Recover the Lost Order
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Antietam National Battlefield, Sharpsburg, MarylandAntietam — Recover the Lost Order
📍 Antietam National Battlefield, Sharpsburg, Maryland·🕐 2h30 – 3h·📍 ~6 km
Also available as:HistoricalSupernaturalFairy tale

Antietam — Recover the Lost Order

Uncover General Lee's lost Special Order 191, the blueprint that nearly handed victory to the Confederacy. Decode battlefield clues to reclaim this pivotal Civil War secret before it vanishes forever.

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

Difficulty
·From age 12 years
Starting point :Antietam National Battlefield Visitor Center

September 17, 1862: The bloodiest single day in American history unfolds along Antietam Creek

8
stages
~6 km
route
2h30 – 3h
at your pace
🚶
walking

Antietam — Recover the Lost Order

🎭Your Mission

You are a Union intelligence operative, dispatched to Antietam in September 1862.

Your mission: to recover General George B. McClellan's lost battle order before it falls into

Immerse yourself in the heart of Maryland, where blood forever stained the fields of Sharpsburg, following the footsteps of the Battle of Antietam, one of the bloodiest days in American history.

« Official motto of the State of Maryland: Fatti maschii, parole femine. »
Official motto of the State of Maryland

The story that haunts this land

Your quest begins at the Antietam National Battlefield Visitor Center in Sharpsburg, Maryland. Opened in 2002, this modern building is the official starting point for tours, housing maps, uniforms, and period artifacts from the Battle of Antietam. Here, you collect your first clues, scrutinizing the permanent exhibits to understand troop movements on September 17, 1862. From there, you head to the Dunker Church, officially the Church of the Brethren, built in 1852 by the pacifist Dunkard Baptists. This edifice, faithfully reconstructed in 1962 for the Civil War's centenary, served as a command post and field hospital, a central location for unraveling the day's secrets.

Continue your investigation north, where The Cornfield, an agricultural area, was the scene of fierce fighting. This plot, planted with corn, saw thousands of casualties during successive assaults by Union and Confederate forces, lasting approximately three hours. It is here, in the heart of this now infamous field, that you must locate the exact position where McClellan's order might have been lost. Your path then leads to Bloody Lane, a sunken road where Confederate troops entrenched themselves. The name "Bloody Lane" attests to the massive losses suffered by both sides, with a Union assault finally breaking through the line after violent clashes. Monuments and explanatory panels help you reconstruct regiment movements and the extent of casualties, crucial information for your mission in Maryland.

Your route takes you to the Pry House Field Hospital Museum, a farmhouse built around 1830 that served as General George B. McClellan's headquarters during the Battle of Antietam. After the battle, the house became a field hospital where thousands of wounded were treated. Today, the museum features exhibits on Civil War military medicine and the role of figures like Clara Barton. It's a prime location for discovering medical documents and testimonies that might contain fragments of the lost order. Clues are sometimes hidden in the most unexpected places, amidst period surgical instruments.

Next, cross Antietam Creek, a natural waterway that played a strategic role as a Confederate defensive line. The creek is particularly famous for Burnside's Bridge, an early 19th-century stone bridge defended by a small Confederate contingent against waves of Union assaults. This preserved historic monument, with its panels detailing troop movements and human losses, is a key stop for understanding the Union army's delays. Fishing is now permitted on Antietam Creek, but your objective is to find clues along its banks, near this iconic bridge, to reconstruct the events of September 17, 1862.

Finally, your investigation leads you to the Maryland Monument, located on the Antietam battlefield. This monument, dedicated in the early 20th century, commemorates Maryland soldiers who fell during the Civil War. Near Bloody Lane, it offers a regional perspective on the battle. After exploring these iconic sites of Sharpsburg, Maryland, you will have gathered all the pieces of the puzzle. This journey will have allowed you not only to recover the lost order but also to grasp the complexity and tragedy of the Battle of Antietam, a day that marked the history of the United States and the heritage of the National Park Service.

1862
September 9: General Lee issues Special Order 191, detailing Confederate invasion plans.
1862
September 13: Union soldiers discover a copy of Special Order 191 near Frederick, Maryland.
1862
September 17: The Battle of Antietam, the bloodiest single-day battle in American military history.
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

Antietam National Battlefield Museum & Visitor Centeroptional
Free access. Explore the permanent exhibits for a deep dive into the Battle of Antietam, featuring maps, uniforms, and period artifacts.
Optionnel
/pers.
Pry House Field Hospital Museumoptional
Free access. Discover Civil War military medicine and Clara Barton's role in this historic field hospital.
Optionnel
/pers.
Maryland Crab Cake Tastingoptional
Approx. price: $20-30. Savor Maryland's culinary specialty, fresh crab cakes, at a local Sharpsburg restaurant.
Optionnel
/pers.
Fishing on Antietam Creekoptional
Requires a Maryland fishing license. Enjoy the tranquility of the creek banks, where battles raged in 1862.
Optionnel
/pers.
Budget if you do them all / pers.~0

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
Antietam National Battlefield Visitor Center
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~6 km
Along the battlefield
Accessibility
Partial
Long walking distances, uneven paths
🌐
Languages
17 languages
Built-in translation

Why this route?

⚔️

Military Strategy

Uncover the tactics and decisions that shaped one of the most critical battles of the Civil War.

🩸

The Battlefield

Walk through the iconic locations where thousands of men fought and perished, from the North Woods to Burnside Bridge.

📜

Secret Orders

Unravel the mystery of Special Order 191 and its impact on the fate of the Confederacy and the Union.

Unravel the mystery that turned an audacious plan into a missed opportunity, and a day into a bloodbath.

Your quest: reconstruct a liaison officer's logbook and the role of the lost orders.

★ 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

Soyez le premier à partager votre expérience.

Did you play le plan perdu d antietam? Check the email you received after your game to leave a verified review.

Your turn to play

Immerse yourself in the heart of Maryland, where blood forever stained the fields of Sharpsburg, following the footsteps of the Battle of Antietam, one of the bloodiest days in American history.

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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