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Uncover the hidden legacy of the Primus Pilus, Pula's arena champion turned citizen. Decipher his final testament amid Roman ruins to reveal a betrayed fortune before it vanishes forever.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the heart of Roman Pietas Iulia—today's Pula—stood Marcus Valerius, the invincible Primus Pilus, first century of the legion that tamed Istria
You are a Primus Pilus, a chief centurion of a legion in 1st century AD Pietas Iulia, tasked by Emperor Augustus with a secret mission.
Your quest begins before the
Dive into Pula's Roman legacy, where the echo of gladiators still resonates in the world's sixth-largest amphitheater.
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. »
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.
Places tied to your adventure — optional entries, totally up to you · per person
Your journey in Pula begins at the Amphitheater, built between 27 BC and 68 AD under Emperors Augustus, Claudius, and Vespasian. It is the sixth-largest preserved Roman amphitheater, measuring 132.45 m x 105.1 m x 32.45 m high, and one of only four in the world with its four intact access towers. Imagine the 23,000 spectators watching gladiatorial combats until the 5th century. This site, on the UNESCO World Heritage Tentative List in 2006, was the beating heart of public life in Pietas Iulia, the Roman colony founded by Julius Caesar in 59 BC.
200 meters south of the amphitheater, you reach the Arch of Hercules, erected in the 1st century AD as a city gate. This unique arch, 4 m high and 2.5 m wide, adorned with a frieze of Hercules, is the last remnant of Pula's Roman gates. The dedicatory inscription to Hercules, discovered in situ in the 19th century, testifies to the importance of protective deities for the inhabitants of Istria. It reminds you of Rome's power and Augustus's presence in the region, who oversaw much of Pula's construction.
Your path then leads you to the Walls of Pula, whose 1st-century Roman foundations were used for the Venetian walls built between 1450 and 1633. These ramparts, with a total perimeter of 3.2 km and an average height of 10 m, incorporate 14 preserved bastions, including Fort Castel Goffredo (1631) used until 1945. 500 m northeast of the amphitheater, the Cathedral of the Assumption of the Blessed Virgin Mary, whose original church dates from the 4th century and apse from the 15th, and its 1608 bell tower, one of Istria's tallest at 40 m, reveal the evolution of Pula's heritage through the centuries.
Continuing your exploration of Pula, you will walk along Via Sergia, the main Roman road from the 1st century AD, 600 m long, paved with Istrian limestone blocks and aligned with the cardo maximus. Lined with arcades restored in 1930, it leads you to the Small Roman Theater, built around the 1st century AD with an 18 m wide stage and a capacity of 300 spectators. This theater, used until the 5th century and where intact frescoes were discovered in 1940, is one of three preserved Roman theaters in Croatia, another gem of the Archaeological Museum of Istria.
Your journey concludes at the Port of Pula, a natural harbor exploited since 1000 BC by the Histrians, which became a Roman naval base under Caesar in 59 BC and later an Austro-Hungarian naval base from 1853 to 1918 with a 20-hectare arsenal. These 12 m deep channels, located 800 m south of the amphitheater, witnessed Istria's maritime history. As Primus Pilus, you will have traversed Pula, deciphered its Roman and Venetian history, and understood the strategic importance of this city, a true open-air archaeological museum, classified as a Croatian cultural monument.
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.
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.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
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Follow the last wishes of an unsung hero to discover his secret.
Explore the ruins of Pula and let the stones tell you ancient stories.
Decipher codes and symbols inherited from Roman military tactics.
Victorious on the sand, immortal through knowledge.
A gladiator is never defeated if he leaves an enigma behind.
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
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.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
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.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
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.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
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.
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).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
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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Dive into Pula's Roman legacy, where the echo of gladiators still resonates in the world's sixth-largest amphitheater.
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
More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

Decipher the secret rebellion of enslaved gladiators in Pula's Roman amphitheatre. Uncover coded messages, hidden tombs, and the truth behind a legendary oath sworn in blood.

Decipher James Joyce's lost 1904 manuscript hidden across Austro-Hungarian Pula. Uncover the coded letters, cryptic notes, and forbidden passages the exiled writer concealed before fleeing.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12€. Descendez dans les souterrains de l'amphithéâtre pour découvrir les mécanismes et les couloirs qu'empruntaient les gladiateurs et les animaux avant les combats.
15-25€. Savourez le cépage blanc emblématique de l'Istrie dans une cave locale, souvent accompagnée de fromages et d'huile d'olive de la région.
À partir de 60€. Explorez les fonds marins de Pula et découvrez des amphores et des vestiges de navires romains qui gisent à proximité du port antique.
10€. Explorez des milliers d'artefacts romains et préhistoriques découverts dans la région de Pula, y compris des éléments des fouilles du Petit Théâtre Romain.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.