Arlon — Orolaunum Stelae Secret
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Arlon, WalloniaArlon — Orolaunum Stelae Secret
📍 Arlon, Wallonia·🕐 2h – 2h30·📍 ~2.5 km
Also available as:HistoricalFantasySupernaturalMystery

Arlon — Orolaunum Stelae Secret

Uncover the hidden conspiracy behind Orolaunum's enigmatic stelae. Decode ancient inscriptions, track shadowy cult rituals, and expose the forbidden truth buried in Arlon's Gallo-Roman heart before the curse claims you.

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

Difficulty
·From age 12 years
Starting point :Place Léopold, Arlon

In the 1st century AD, Orolaunum vicus—modern Arlon—thrived as a bustling Gallo-Roman crossroads, its streets lined with grand mausolea towering like sentinels

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

Arlon — Orolaunum Stelae Secret

🎭Your Mission

You are an Imperial Roman archivist, personally dispatched by Emperor Augustus in the 1st century AD on a secret mission to retrieve a lost stele in Orolaunum, the powerful crossroads of

Delve into the mystery of forgotten cities and unearth the Gallo-Roman secrets of Orolaunum, capital of the Treveri, in the heart of Arlon.

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

Gaspar Museumoptional
€5. Discover Arlon's local art and history through the collections of sculptor Jean-Marie Gaspar and other regional artists.
Optionnel
/pers.
Roman Toweroptional
Free. Explore the remains of a 3rd-century Roman defensive tower, offering views of Orolaunum's ancient fortifications.
Optionnel
/pers.
Local Beer Tastingoptional
€15. Savor the unique flavors of craft beers brewed in the province of Luxembourg, with options for every palate.
Optionnel
/pers.
Stroll in the Exhibition Parkoptional
Free. Enjoy a peaceful green space in the heart of Arlon, ideal for a relaxing break after your historical exploration.
Optionnel
/pers.
Budget if you do them all / pers.~0

The story that haunts this land

Your quest begins at Place Léopold, the beating heart of Arlon. Developed in the 19th century in honor of Léopold I, the first King of the Belgians, this 5,000 m² square has always been a convergence point. Since the Middle Ages, it has hosted weekly markets, testifying to its central role in the city's economic and social life. The neoclassical buildings surrounding it, erected between 1830 and 1850, immerse you in a past atmosphere as you search for the first clues of the missing stele.

A short walk away, Arlon's Hôtel de Ville stands proudly. Built between 1621 and 1626, it embodies the Mosan Renaissance style, succeeding a 16th-century edifice. Its facade is adorned with 48 allegorical statues, sculpted by local artisans, representing virtues and arts. Classified as a Historic Monument since 1943, this building has housed municipal archives since 1830. The bell tower, rising to 40 meters, offers a perspective on Wallonia's history and its administrative secrets, possibly linked to your imperial mission.

Your journey then leads you to Arlon's Archaeological Garden, a Gallo-Roman Orolaunum site opened in 1931. Over 1 hectare, this garden exhibits mosaics and foundations of Roman villas dating from the 2nd-3rd century, discovered during the 1920s excavations. This place is a direct link to Orolaunum, which was the capital of the Treveri under the Roman Empire from the 1st to 4th century. Right next door, Arlon's Roman Baths, listed as a classified heritage property in 1997, reveal remains from the 2nd century AD over approximately 2,000 m², with intact hypocaust and pools. These archaeological sites in Wallonia are crucial for your investigation.

Continuing your exploration, you arrive at Saint-Donat Church. This collegiate church, initially built in the 11th century then remodeled in the 14th century in a Brabantine Gothic style, is another Historic Monument Belgium. Its bell tower, completed in 1721, rises 62 meters high. More importantly for your quest, it houses Gallo-Roman funerary steles from the 3rd century, exhibited in its crypt. These artifacts offer a direct insight into the Treveri culture and could contain clues about Augustus' stele. Classified as a Historic Monument in 1937, this church is a pillar of Wallonia's archaeological heritage.

Your journey concludes on Rue des Thermes, which follows the route of Orolaunum's ancient cardo maximus from the 1st century, and Place du Musée. Rue des Thermes, 300 meters long, is lined with 18th-century houses and has revealed 2nd-century Roman sigillata pottery during excavations. Finally, Place du Musée, developed in the 19th century, is the heart of the Gallo-Roman quarter and home to Arlon's Archaeological Museum. Founded in 1840, it houses Belgium's largest Gallo-Roman lapidary collection with over 600 funerary steles from the 2nd-4th century, including the famous 'Augustus' stele dated 14 AD. You have found traces of your mission in this Gallo-Roman Orolaunum site, thus concluding your interactive visit to Arlon.

52 av. J.-C.
Julius Caesar completes the conquest of Gaul, integrating the Orolaunum region into the Roman Empire.
Ier-IIIe siècle ap. J.-C.
Period of Orolaunum's prosperity and massive erection of funerary stelae, testifying to local wealth.
406 ap. J.-C.
The crossing of the Rhine by Germanic peoples marks the beginning of the decline of Roman authority in Gaul.

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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Practical info

Starting point
Place Léopold, Arlon
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~2.5 km
Historic city center
Accessibility
Partial
Slopes and cobblestones in the old town
🌐
Languages
17 languages
Built-in translation

Why this route?

🪦

Millennia-Old Stelae

Decipher messages carved in stone by Orolaunum's inhabitants, witnesses to a forgotten civilization.

🏺

Roman Artifacts

Explore the remnants of a distant civilization and its complex funerary rituals scattered throughout the city.

🔎

Archaeological Investigation

Follow the clues of a funerary enigma through the modern city of Arlon, from its squares to its ancient alleys.

Dead indeed, but always remembered.

Decipher the legacy of Orolaunum's ancestors.

★ 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 secret des steles d orolaunum? Check the email you received after your game to leave a verified review.

Your turn to play

Delve into the mystery of forgotten cities and unearth the Gallo-Roman secrets of Orolaunum, capital of the Treveri, in the heart of Arlon.

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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