Cahul — Rumyantsev's Lost Secret
Uncover the hidden codes of Rumyantsev's 1770 victory over the Turks in Cahul. Decipher forgotten inscriptions at war monuments and churches to expose the secret that changed the war's course.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1770, Russian Field Marshal Pyotr Rumyantsev crushed the Ottoman forces in the Battle of Cahul, a decisive clash on the muddy fields near this town
Cahul — Rumyantsev's Lost Secret
You are a trusted Russian military archivist, dispatched to Cahul, Moldova, in 1774.
Your secret mission is to follow the trail of Field Marshal Piotr Rumiantsev
Uncover the mystery of Field Marshal Rumiantsev in the Moldovan city where his secret archives have slept since 1774.
The story that haunts this land
Cahul becomes a nerve center of Russian expansion toward the Balkans under Catherine II. In 1770, Piotr Rumiantsev establishes his winter quarters here after the Battle of Kagul, a decisive victory that opens the route to the Danube. This city in southern Moldova district, located at the confluence of centuries-old trade routes, offers an ideal position to monitor Ottoman movements. Piața Independenței today occupies the presumed location of the former Russian military camp, where Rumiantsev's Cossacks pitched their tents between diplomatic missions.
Strada Ștefan cel Mare leads you in the footsteps of the ancient Moldovan prince (1457-1504) who resisted the Ottomans three centuries before Rumiantsev. This 500-meter artery symbolically connects two eras of anti-Ottoman resistance: that of the Moldovan national hero and that of Russian expansion. The traditional Moldovan houses lining this street testify to the local architecture discovered by Catherine II's officers, a blend of Byzantine and Ottoman influences that Russian domination would progressively transform.
Parcul Central, developed in the 1960s-1970s, occupies the site of the former military esplanade where Rumiantsev reviewed his troops. Beneath the Soviet walkways sleep the foundations of a vanished world: barracks, stables, weapons depots of the Russian imperial army. Primăria Cahul, built in the 1950s, perpetuates the centralized administrative tradition inherited from Russian military organization. Its Soviet neoclassical facade evokes the offices where Rumiantsev's successors administered this newly conquered region.
Catedrala Sf. Arhangheli Mihail și Gavriil, built in the 1990s after Moldovan independence, rises near the site of the former field church where Rumiantsev attended victory Te Deums. Its neo-Byzantine architecture reconnects with Orthodox traditions that Russian victories had protected against Ottoman Islamic pressure. Monumentul Eroilor, erected in the 1970s, perpetuates the military memory of this battleground, from Rumiantsev's campaigns to the 1941-1945 battles.
You leave Cahul with the certainty of having walked on one of the most decisive pages of Eastern European history. This southern Moldovan city preserves in its stones the memory of Russian expansion that reshaped the Balkan balance. Between authentic Moldovan heritage and Russian-Soviet legacy, Cahul reveals how grand geopolitical strategies are embodied in local urbanism and architecture. Rumiantsev's secret is this capacity of places to preserve the imprint of events that forged modern Europe.
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 Route
5-10 curated sites across the territory
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 · 14,90€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Forgotten Military Strategy
Reconstruct Marshal Rumyantsev's audacious maneuvers during the decisive Battle of Cahul in 1770.
Secret War Archives
Unravel fragments of an officer's journal to reveal the tactics that led to the Russian victory.
Geopolitical Legacy
Explore the impact of this forgotten victory on the destiny of Moldova and the balance of power in Eastern Europe.
The secrets of victory never die, they wait to be rediscovered.
Unravel the threads of the past and rewrite the history of Cahul.
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
Uncover the mystery of Field Marshal Rumiantsev in the Moldovan city where his secret archives have slept since 1774.
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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