Oslo — Milorg's Secret Register
From12€

🕒 No date to pick · Code valid 1 year · Play whenever you want

Get my code
💡City Pass from 19€All games in Oslo
Oslo city center, from the harbor to the royal residenceOslo — Milorg's Secret Register
📍 Oslo city center, from the harbor to the royal residence·🕐 2h30 – 3h·📍 ~3.5 km
Also available as:HistoricalMysterySpy thriller

Oslo — Milorg's Secret Register

Uncover the hidden Milorg register destroyed in daring sabotage raids. Decode clues from resistance heroes to expose the Gestapo's lost blacklist before it resurfaces.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 14 years
Starting point :Entrance to Akershus Fortress, near the Patriots' Memorial

In occupied Oslo, 1944, the Norwegian resistance group Milorg launched their boldest operation: destroying Gestapo-controlled registers listing youths for forced labor

8
stages
~3.5 km
route
2h30 – 3h
at your pace
🚶
walking

Oslo — Milorg's Secret Register

🎭Your Mission

You are a Milorg intelligence officer in occupied Oslo, 1944.

In this city under occupation, the Norwegian resistance group Milorg launched their boldest operation: destroying Gestapo-

Oslo 1944: The hunt for the Resistance's secret plan

« « We will fight for this country and for its freedom, no matter the cost. » »
Gunnar Sønsteby, the hero of the Norwegian Resistance

Milorg: Norway's Secret Army

Following the German invasion of Norway in April 1940, resistance quickly organized, initially fragmented, then under the umbrella of Milorg (short for Militær Organisasjon – Military Organization). Originally formed in 1941, Milorg became the backbone of the internal Resistance, coordinating sabotage actions, intelligence, and support for the Allies. Operating in the shadows, often in small groups like the iconic 'Oslogjengen' (Oslo Gang) led by Gunnar Sønsteby, Milorg became a formidable clandestine force.

The Milorg network, which numbered tens of thousands of members at its peak, played a crucial role in weakening the German occupation. Its actions ranged from sabotaging vital infrastructure, such as railway lines and armament factories, to distributing underground newspapers and aiding escapes. Their exploits, often at the risk of their lives, became national legends, symbolizing Norwegian determination to reclaim its freedom from the oppressor.

1940
Invasion of Norway by Nazi Germany and start of the occupation
1941
Official formation of Milorg, the armed wing of the Resistance
1944
Decisive year for sabotage and intensified clandestine operations
Far more than an escape game

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

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

Norwegian Resistance Museum (Hjemmefrontmuseet)optional
Located within Akershus Fortress, this essential museum traces the complete history of the Norwegian resistance, displaying objects and documents directly related to the Milorg operations mentioned in the game.
12€
/pers.
Armed Forces Museum (Forsvarsmuseet)optional
Explore Norway's military evolution, including detailed sections on World War II and the defense strategies that inspired Resistance actions.
10€
/pers.
Budget if you do them all / pers.~22

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.
🕒No date to pick · Code valid 1 year · Play whenever you want

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

Starting point
Entrance to Akershus Fortress, near the Patriots' Memorial
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 14
📍
Distance
~3.5 km
Oslo historic center
Accessibility
Partial
Some slopes and cobblestones, but no major stairs
🌐
Languages
17 languages
Built-in translation

Why this route?

🕵️‍♀️

Espionage & Intrigue

Dive into the clandestine networks of occupied Oslo.

💥

Sabotage & Resistance

Thwart enemy plans by helping Milorg strike in the right place.

📜

Codes & Secret Messages

Decipher hidden communications to accomplish your vital mission.

Freedom is not given, it is taken.

Join Milorg's ranks and liberate Oslo.

★ Innovation 2026

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 registre milorg oslo? Check the email you received after your game to leave a verified review.

Your turn to play

Gather the clues scattered throughout Oslo to outsmart the Gestapo and allow the Resistance to strike a major blow. Your insight is Norway's last hope.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

No calendar booking. Code sent immediately by email.

🔒Secure payment · Code in 5 min · Free cancellation

🪙+24 TripCoins granted with your booking

🎟️Coupe-file

Réservez vos entrées maintenant

Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.

💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.