Þingvellir — The Lost Decree of the Althing
Decipher a hidden decree from Iceland’s first parliament and expose the conspiracy that tried to bury it.
📱 1 to 10 phones · 1 team per phone · Independent codes
In 930 AD, the Althing—the world’s oldest parliament—was founded on the windswept plains of Þingvellir, where chieftains gathered to recite law from the Lögberg and settle blood feuds
Þingvellir — The Lost Decree of the Althing
You are Ülfjótr, the presumed first lögsögumaður of the Althing, in late 10th century Iceland, tasked with recovering a vital decree for the assembly.
Your
Dive into the heart of Þingvellir, where Iceland's destiny was forged under the gaze of tectonic plates, and recover the decree that sealed its future.
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 story that haunts this land
Your quest for the lost decree begins at the Hakið Information Centre, the official starting point for exploring the historic trails of Þingvellir. Here, an interactive exhibition immerses you in the history and nature of this crucial site for Sudurland's heritage. From this center, you enter the Almannagjá fissure, the main rift valley crack, marking the geological boundary between the North American and Eurasian plates. This is the path the ancients took to reach the assembly, a place where the earth itself bears witness to the forces that shaped Iceland.
Continuing your journey, you reach Lögberg, or 'Law Rock,' a natural rocky platform where the lögsögumaður recited laws during the Althing from 930 to 1798. This elevated site offered a commanding view of the plain, allowing all representatives of Iceland to follow the debates. It is here, near the excavated remains of the booths, that the legislative heart of the historic Althing beat, a central place for the country's justice and governance.
The trail then leads you to Drekkingarhylur, the Drowning Pool, located in the Öxará river. Between 1602 and 1750, this site was where 18 women accused of incest, infanticide, or witchcraft were executed under the Althing's jurisdiction. Drekkingarhylur's proximity to Lögberg highlights the Althing's duality, both a legislative assembly and a supreme court, administering relentless justice in the landscapes of Þingvellir.
Your exploration of Þingvellir National Park continues towards Öxarárfoss, a 20-meter waterfall formed in the 18th century by a diversion of the Öxará river. This cascade, though a more recent addition to the landscape, has become an integrated feature of the site and is accessible via the historic trails. Not far, you discover Peningagjá, a clear water-filled fissure within Almannagjá. Visitors throw coins here, a modern tradition that fits into the long history of human interaction with this unique Sudurland location.
Finally, your quest concludes near Þingvallakirkja, the Þingvellir church, built in 1859 on the foundations of an 11th-century church. This parish church adjacent to the historic farm, also included in the UNESCO site, offers a vantage point for reflecting on centuries of Icelandic history. By completing this GPS scavenger hunt, you will have not only recovered the decree but also fully discovered the heritage of Þingvellir, from its ancient assemblies to its tectonic landscapes, an essential interactive visit to understand the history of Iceland.
The Route
8 sites to explore by car within the day
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?
Breathtaking Landscapes
Immerse yourself in the wild and tectonic beauty of Þingvellir, a UNESCO World Heritage site.
Ancestral Law
Uncover the principles and challenges of one of the world's earliest legislative systems.
Stories of Chieftains
The wisdom of the ancients is carved into the earth.
Reconstruct the decree, restore order.
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
Dive into the heart of Þingvellir, where Iceland's destiny was forged under the gaze of tectonic plates, and recover the decree that sealed its future.
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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