Thermopylae — Leonidas' Betrayal
Uncover the traitor who doomed Leonidas and his 300 Spartans at Thermopylae. Decode ancient clues across the battlefield to expose Ephialtes' secret path and claim the lost Spartan honor.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 480 BC, King Leonidas led 300 Spartans to hold the narrow pass at Thermopylae against Xerxes' massive Persian army
Thermopylae — Leonidas' Betrayal
You are Dieneces of Sparta, an officer of the elite 300, in your native city of Sparta, 480 BCE.
Your secret mission takes an urgent turn: you discover
Walk the 1.5 km of Sparta's archaeological site where Leonidas prepared his 300 warriors before marching to Thermopylae in 480 BC.
The story that haunts this land
Sparta reveals its secrets from Leonidas' statue, erected in 1968 on the central square to commemorate the Battle of Thermopylae in 480 BC. This 4-meter sculpture, depicting the Spartan king in armor with spear and shield, marks the starting point of your investigation. Around you, modern Sparta conceals the remains of the ancient city-state that dominated the Peloponnese for centuries. Your mission begins here: identify the traitor among the 300 before he delivers defensive plans to Xerxes' Persian spies.
The sanctuary of Artemis Orthia, 800 meters from the statue, immerses you in Sparta's most brutal initiation rites. Active from the 8th century BC, this sacred site hosted the diamastigosis, ceremony where Spartan youths endured flagellation to prove their courage. The remains of the Doric temple, rebuilt in the 2nd century AD under Hadrian, witness centuries of bloody sacrifices. Here, Dieneces himself underwent this ordeal before joining the ranks of Sparta's military elite.
Sparta's ancient theater, built around 200 BC on Mount Taygetos slopes, could accommodate 15,000 spectators in its 20-meter diameter orchestra. One kilometer from your starting point, this monument served Spartan festivals and gymnastic competitions that forged the city's warrior identity. In these stone tiers, citizens debated crucial military decisions, notably sending Leonidas to defend the Thermopylae pass against the massive Persian army.
Sparta's agora, political and commercial center of the 3rd century BC, extends over 200 x 100 meters near the ancient theater. Its porticoes and Roman basilica housed the heart of Spartan civic life. The remains of the Persian Stoa, built with Persian marble captured during the Persian Wars, recall Spartan victories against the Achaemenid Empire. Within these walls were hatched the alliances and betrayals that shaped Peloponnese history.
Your journey ends at the sanctuary of Athena Chalkioikos, on Sparta's Acropolis 1.2 kilometers from Leonidas' statue. This 'bronze house' temple, mentioned by Pausanias in the 2nd century AD, was built around 580 BC and renovated after the 464 BC earthquake. Dedicated to Sparta's protector, it was adorned with bronze shields captured from enemies. Sparta's archaeological museum, 500 meters away, preserves the legendary Spartan inscription facing Persian ultimatums. You leave with certainty that Spartan honor, forged in these ancient stones, still resists the centuries.
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?
Ancient military tactics
Decrypt phalanx formations and Spartan strategies carved into the city's architecture
Living archaeology
Explore genuine Mycenaean remains and recent archaeological discoveries
Ancient sources
Follow testimonies from Herodotus and Pausanias to reconstruct authentic history
Eternal glory is born from willing sacrifice
Leonidas at Thermopylae
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
Walk the 1.5 km of Sparta's archaeological site where Leonidas prepared his 300 warriors before marching to Thermopylae in 480 BC.
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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