Christiania — Secret of the Green Walls
Uncover the hidden resistance codes etched into Christiania's green walls. Decode the rebels' secret plans before they're lost forever in this walkable conspiracy hunt.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the heart of Copenhagen's rebellious Freetown Christiania, the Green Wall stands as a defiant mural of counterculture defiance
Christiania — Secret of the Green Walls
You are an investigative journalist, commissioned in Copenhagen, 1989, to document Christiania's legal recognition by the Danish government and uncover traces of its founders.
Your quest begins at
Discover Copenhagen and its secrets by delving into the history of Freetown Christiania, an autonomous enclave born from a utopia in 1971.
« Fluctuat nec mergitur »— Motto of the city of Copenhagen
The story that haunts this land
Your immersion into the history of Freetown Christiania 1971 begins at Indgangen fra Prinsessegade, the main access to this autonomous district of Copenhagen. In September 1971, a group of hippies occupied these disused military grounds of the Danish army, laying the foundations for what would become a unique community. 200 meters away is Christianshavns Torv, a historic square built in the 1670s during the expansion of Christianshavn by Christian V of Denmark. This starting point anchors you in the past of Sjaelland before diving into Christiania's social experiment.
As you head towards the heart of Christiania, you walk along the famous Pusher Street, a 340-meter long thoroughfare where bicycles and cars have been prohibited since 1971 for safety reasons. This emblematic path testifies to the evolution of the Freetown. A short distance away, the imposing Church of Our Saviour (Vor Frelsers Kirke), built between 1695 and 1704 by Herman van Bossche, dominates the landscape. Its 95-meter spire, accessible by an external spiral staircase of 400 steps, offers a panoramic view of Christiania and Copenhagen harbor, allowing you to grasp the scale of this alternative Copenhagen neighborhood within the Danish capital.
Your journey then takes you to Den Grå Hal (The Grey Hall), Christiania's main building, erected in 1973. With an area of 600 m² and a capacity of 1,000 people, this place hosted Christiania's first general assemblies in 1971-1972, shaping its identity. 250 meters away is Voïdvangskirken, a neo-Gothic church from 1871, designed by Ferdinand Meldahl. This place of worship in Christianshavn served as an alternative sanctuary for young people in the 1970s before Christiania's creation, highlighting the historical links between the neighborhood and Sjaelland's counter-culture movements.
Continuing your exploration of Danish hippie heritage, you discover the quays of the Christianshavn Canal, dug between 1617 and 1624 by order of Christian IV. 3.2 km long and punctuated by 7 historic bridges, the canal is 150 meters from Christiania's entrance via Prinsessegade. These emblematic walks within the game's perimeter reveal the richness of the historic Christianshavn district, with its 17th-century warehouses classified as Danish historical monuments, offering a striking contrast with the free spirit of Freetown Christiania.
At the end of this walk in Copenhagen, you will have covered a 1.5 km itinerary that will have taken you through the history and autonomy of Christiania. From its founding on September 26, 1971, occupying 34 hectares and becoming Copenhagen's 4th most populous district with approximately 900 residents, to its legal recognition in 1989, this scavenger hunt offers you a deep understanding of this unique site. You will take with you not only facts about Copenhagen's history, but also the spirit of resilience and innovation that shaped this alternative district of Sjaelland, a true testament to the Danish hippie movement.
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.
The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.
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?
Secret Conspiracy
Thwart the machinations and uncover the hidden plans of a dissident network within Christiania.
Encrypted Scores
Interpret melodies to reveal unspoken messages and hidden strategies.
Community Resilience
Witness the strength of a community facing state adversity and external threats.
Track the secret melody of survival.
Christiania's resistance plan is coded in a score.
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
Q01What's the difference with a regular indoor escape room?
Outdoor escape game format: no physical locks, no actor, no fixed time slot. You start when you want, progress through Christiania, Copenhagen with your phone, and the city itself is the set. More immersive on local history, more flexible in pace.
Q02Can we take a break mid-trail?
Of course. Stop at a café, have lunch, resume later: your progress is saved. Many players bake a meal break into the trail, especially with families.
Q03Do we need to be several people to enjoy it?
No, solo works very well. The outdoor escape game format in self-guided mode leaves room for introspection: read the story at your pace, hunt clues like a detective. 2-6 players is more social, solo is more contemplative.
Q04Is Christiania — Secret of the Green Walls stroller-accessible?
Depends on the exact route in Christiania, Copenhagen. The vast majority of stops are downtown, on sidewalks or squares. If a stair or narrow passage is involved, it's flagged on the product page. Generally: yes, doable with a standard urban stroller.
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Your turn to play
Discover Copenhagen and its secrets by delving into the history of Freetown Christiania, an autonomous enclave born from a utopia in 1971.
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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