Spa — The Kaiser's Final Secret
Uncover the Kaiser's hidden fortune smuggled to Spa after his abdication. Decode clues from WWI spies and track the lost gold before it vanishes forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In November 1918, as the Armistice loomed, Kaiser Wilhelm II fled his crumbling empire, abdicating in disgrace
Spa — The Kaiser's Final Secret
You are an imperial archivist, urgently dispatched to Spa, Belgium, in 1941, just after the death of Wilhelm II.
Your mission: to locate his hidden will and compromising documents
Delve into the final days of a fallen emperor, tracking Kaiser Wilhelm II's buried secrets in the spa town of Spa.
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.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
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?
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 story that haunts this land
Your quest begins at the Former Residence of the Kaiser, the Hôtel Britannique, where Emperor Wilhelm II of Germany lived in exile from 1918 until his death on June 4, 1941. This building, constructed in 1907 in an Art Nouveau style, witnessed his final years, a little-known chapter in Spa's post-World War I history. It is here, in this thermal district of Spa, that the first clues to his secret archives begin to reveal themselves, hidden among the emblematic architectural details of this listed monument.
Continue to the Parc de Sept Heures, a 2-hectare landscaped park created in 1768 by the Anjou architect Gilles-Barnabé Guédry for the Spa thermal baths. Its name, derived from the daily 7 AM meetings of spa-goers in the 18th century, evokes an era when the 'City of Water' was a prime resort destination. Listed as part of Wallonia's monumental heritage since 1980, this park houses neoclassical fountains and statues, ideal spots to decipher further fragments of the imperial past, away from prying eyes.
The path then leads you to the Pouhon Pierre le Grand, a fountain built in 1736 in honor of Tsar Peter I of Russia, who visited Spa in 1717. This octagonal structure of red marble, 4 meters high, has been drawing ferruginous water since 1717. Restored in 1830 after damage in 1794, it symbolizes Spa's long thermal tradition. It is by this historic source that you decipher a message linked to the emperor's secret correspondence, perhaps with echoes of the Russian aristocracy who frequented the town.
Place Royale, created in the 18th century and renamed in 1816 under William I of the Netherlands, is the nerve center of Spa's historic thermal baths. Surrounded by neoclassical mansions dating from 1760-1780, it also features a statue of the Virgin from 1776. This historic Walloon site, formerly Place du Groat Markt, is a key location for reconstructing Wilhelm II's last wishes. The elegant facades and details of Walloon heritage conceal crucial clues for your investigation in the city of Spa.
Your journey brings you back to the heart of Spa, where the final clues materialize. The Old Thermal Baths of Spa, the original thermal building from 1862, closed in 2012 but listed as a historical monument in 1995, recall the legacy of the 'City of Water.' The thermal springs, exploited since 1565, have witnessed centuries of history. By retracing the emperor's steps through this thematic circuit, you assemble the pieces of the puzzle, revealing not only Wilhelm II's will but also the best-kept secrets of the city of Spa, a true treasure of Wallonia's heritage.
The Route
8 stages through the city
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 · 12€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Imperial Intrigue
Dive into the heart of the political machinations at the end of the German Empire, where the Kaiser's abdication sealed the fate of a nation.
Diplomatic Secret
Untangle the threads of a well-kept secret, a final maneuver by the deposed sovereign before the Armistice froze history.
Historic Escape
Reconstruct the Kaiser's final hours in Spa and the stages of his hasty escape to the Netherlands, caught between hope and despair.
History is written by the victors. But the vanquished sometimes leave a final whisper.
Hunt it down.
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
Delve into the final days of a fallen emperor, tracking Kaiser Wilhelm II's buried secrets in the spa town of Spa.
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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