Đakovo — Strossmayer's Hidden Legacy
Uncover the secret pact behind a bishop’s grand vision and expose the hidden legacy he left buried beneath Đakovo.
📱 1 to 10 phones · 1 team per phone · Independent codes
In late 19th‑century Đakovo, Bishop Josip Juraj Strossmayer reshaped the soul of Slavonia with a single, towering dream: a cathedral that would rival Europe’s greatest churches and a cultural empire t
Đakovo — Strossmayer's Hidden Legacy
You are a diligent archivist, mandated by Bishop Ćiril Kos in Đakovo in 1986, tasked with gathering the founding documents for the future Spomen-muzej b
Dive into 19th-century Croatia and uncover the secrets of Josip Juraj Strossmayer, the bishop-builder who transformed the city of Đakovo.
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 on Strossmayerov trg, the central square of Đakovo, named in honor of Josip Juraj Strossmayer. It is here, in front of the monument erected in 1999 by Marijan Sušac based on Robert Valdec's model, that you begin to decipher the first riddles. This square was the heart of Đakovo's cultural development in the 19th century, under the impetus of the bishop. The route invites you to a family visit to Đakovo, exploring the cultural heritage of Slavonia and the history of Đakovo through its monuments. The clues revealed by augmented reality immerse you directly into the effervescence of this period.
Katedrala sv. Petra, one of Đakovo's most emblematic monuments, is your next stop. Its construction, initiated in 1866 by the Viennese architect Karl Rösner, spanned 16 years until 1882, under the direction of Friedrich Schmidt after Rösner's death. The 7 million bricks used for its structure testify to the ambition of this project. Inside, the 43 frescoes created by Alexander-Maximilian Seitz and Ludwig Seitz over 12 years tell the religious and artistic story of the region, making this neo-Gothic cathedral 1882 one of the most beautiful between Venice and Istanbul. Your on-site investigation reveals hidden details within these artworks.
Continue to Biskupski dvor, the episcopal residence that served as the diocesan seat during Strossmayer's 55-year episcopacy, from 1850 to 1905. This strategic location was a center for intellectual exchange, hosting figures like Vladimir Solovjev. Biskupski dvor is intrinsically linked to Strossmayer's vision for Đakovo, a bishop who worked for educational and cultural development. By exploring this site, you discover how these walls housed decisions and encounters that shaped Slavonia and beyond. The Slavonia thematic circuit shows you the influence of this man on an entire region.
Strossmayerov park, a green haven in the heart of Đakovo, is another testament to the bishop's legacy. This park contributed to the visual and cultural development of the city, offering a space for contemplation and strolling. Nearby, Gimnazija A.G. Matoša, a high school in the historic district, is linked to Strossmayer's educational patronage, as he founded the University of Zagreb in 1874. These places embody Strossmayer's progressive vision, who saw education and culture as the pillars of an enlightened society, an essential chapter in the history of Đakovo.
Your exploration of Slavonia's heritage concludes with the understanding that Josip Juraj Strossmayer was not only a bishop but a visionary whose influence is palpable on every street corner of Đakovo. From the ambitious construction of the cathedral to the founding of the Spomen-muzej in 1991, whose decision was signed in 1986 by Bishop Ćiril Kos, his work endures. This Đakovo scavenger hunt has allowed you to discover not only the history of Đakovo but also the lasting impact of a man on his city and region. You take with you the keys to a rich and complex cultural heritage, the fruit of his dedication.
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?
Historical Manuscript
Reconstruct the Charter of Slavic Unity, the secret manifesto of the great bishop.
Monumental Architecture
Explore the architectural masterpieces that bear witness to Strossmayer's grandeur.
Quest for Unity
Delve into the ideals of Slavic unity and Croatian national identity.
Strossmayer's spirit calls you.
Uncover his forgotten message for Croatia.
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.
Avis des aventuriers
Soyez le premier à partager votre expérience.
Did you play le reve de strossmayer? Check the email you received after your game to leave a verified review.
Your turn to play
Dive into 19th-century Croatia and uncover the secrets of Josip Juraj Strossmayer, the bishop-builder who transformed the city of Đakovo.
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
Other escape games in Croatie
View Croatie→More destinations, tours & urban treasure hunts across the country
Explore other cities in Croatie
Osijek
Slavonia's Baroque heart, by the Drava river
Vukovar
On the Danube's banks, a city of resilient history.
Čakovec
Where Croatian history unfolds along the Drava
Zagreb
Where Austro-Hungarian grandeur meets Balkan spirit
Krapina
On the trail of Neanderthal man
Omis
Pirate city, between sea and canyon