Bourtzi — Venetian Chain Conspiracy
Uncover the Venetian plot behind the deadly harbor chain and Bourtzi's executioner secrets. Solve the conspiracy that sealed Nafplio from invaders.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 1473, Venetian engineer Antonio Gambello erected Bourtzi Castle on a tiny islet in Nafplio's harbor, but its true purpose was far darker than mere defense
Bourtzi — Venetian Chain Conspiracy
You are Gambello, the accomplished Italian engineer commissioned by the Republic of Venice in 1473 to fortify Nafplio's port against Cyclades pirates.
Your mission: inspect the tripartite
Follow the footsteps of Venetian engineers who built the most sophisticated defensive system in the Eastern Mediterranean, from Bourtzi fortress to the chains of Porto Cadena.
The story that haunts this land
Nafplio became Venetian in 1388 under the domination of the Serene Republic. The rocky islet of Bourtzi, 4,000 m² located 500 meters offshore from the old port, immediately caught the attention of Venetian strategists. In 1473, engineer Gambello completed this revolutionary fortification to protect the port from marine invasions and Cyclades pirates who ravaged Mediterranean commerce. The architecture combines Italian military techniques with the geographical constraints of the Argolic Gulf, creating a unique island sentinel.
Nafplio's defensive system relies on a chain stretched each night between Bourtzi and the mainland, giving the port its Venetian name 'Porto Cadena' - the chain port. This military innovation hermetically seals access to enemy ships, transforming the harbor into a protected basin. A dike built during the first Venetian occupation modified the port geography, leaving a narrow channel controlled by the fortress. Acronafplia completes this system by protecting the lower town from its strategic position.
In 1697, during the second Venetian period, engineers added an octagonal tower to Bourtzi, perfecting the defensive architecture. This tower surveys maritime approaches while Palamidi fortress, crowning the city with its 857 steps, forms with Bourtzi and Acronafplia the most sophisticated tripartite system in the Peloponnese. Each fortification covers the blind spots of others, creating a flawless defensive network around the strategic port.
Bourtzi sheltered the Greek government twice in 1824 and 1827 during the War of Independence, testifying to its political importance beyond its military function. After 1865, the fortress became a prison until 1930, then a luxury hotel from 1935 to 1970, adapting its Venetian architecture to new uses. Syntagma Square, built under Ioannis Kapodistrias after liberation, connects the historic port to the modern administrative center, perpetuating the Venetian urban legacy in Greek Nafplio.
Today restored to host summer music festivals and cultural events, Bourtzi remains accessible by boat every 30 minutes from the old port jetty. You take from this journey an understanding of Venetian military genius that shaped Nafplio for three centuries, from cafés with terraces overlooking Bourtzi to the cobbled streets of the historic quarter where the footsteps of the Serene Republic's engineers still echo.
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 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?
Venetian military architecture
Explore the Serenissima's defensive innovations in its Mediterranean fortresses
Historical navigation
Decrypt nautical codes and navigation techniques of the baroque era
Maritime treasure hunt
Follow Morosini's clues to locate the sunken treasure of the Venetian fleet
Through hardships to the sea
Francesco Morosini
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
Follow the footsteps of Venetian engineers who built the most sophisticated defensive system in the Eastern Mediterranean, from Bourtzi fortress to the chains of Porto Cadena.
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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