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Uncover the buried truth behind Johannesburg's 1886 gold discovery. Decipher coded claims, expose rival prospectors' secrets, and solve the mystery of who really found the Witwatersrand's first nugget.
📱 1 to 10 phones · 1 team per phone · Independent codes
On March 20, 1886, George Harrison claimed to have discovered gold at Langlaate Farm—a find that would transform a remote veld into the world's richest goldfield
You are a trusted associate of Barney Barnato, in Johannesburg, 1895.
Your mission: unmask the traitors sabotaging the Witwatersrand gold mines and threatening the
Dive into the effervescence of the 1886 Johannesburg gold rush and thwart a conspiracy threatening to collapse the nascent mining empire.
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 investigation begins at the Rissik Street Post Office, built in 1897 as Johannesburg's first central post office during the ZAR period. This Victorian red-brick building, designated a national heritage monument in 1993 and located at 112 Rissik Street, served as a key communication hub during the Witwatersrand gold rush between 1886 and 1899. Messages intercepted here could reveal the first clues of the conspiracy. Every stamp, every missive might hide a riddle about this Johannesburg gold rush heritage.
Continue to Gandhi Square, formerly Government Square, a site for public gatherings since the 1890s. This square, named in honor of Mahatma Gandhi who practiced law there from 1893 to 1901, is a Gandhi-related site in Johannesburg. Gandhi's statue, unveiled in 2003, is surrounded by 1930s Art Deco buildings reflecting Johannesburg's commercial history. Here, popular orators might have left coded messages to guide you through the alleys of this historic Gauteng square.
The Standard Bank Building on Commissioner Street, completed in 1888, is your next stop. This historic headquarters of the Standard Bank, founded in 1862 in Port Elizabeth and established in Johannesburg in 1863, features a Victorian style with a four-story sandstone facade. The bank financed the first Witwatersrand gold mines, contributing to Johannesburg's explosive growth after 1886. Could banking records hide suspicious transactions revealing your adversary's accomplices in this industrial heritage of the gold mines?
Your route then leads you to the Workers Museum, opened in 2002 at 52 Johannesburg Road. This museum is located on the site of a former complex of black workers' housing, built in 1918 to house 3000 migrant miners during the gold mines' peak. It documents the living conditions of workers under apartheid. Although from a later period, this site is crucial for understanding the labor force that built Johannesburg's wealth. Graffiti or personal items might contain forgotten symbols, secret codes left by exploited workers, in this national heritage monument.
Conclude your investigation at Chancellor House, the 1913 building at 46 Chancellor Street, Wolmarans Street. Formerly the offices of the first black lawyers, this three-story building was where Nelson Mandela and Oliver Tambo worked from 1952 to 1959 before their banning. Restored in 2011 as a museum, it is a symbol of the anti-apartheid struggle, but also a place of secrets. The archives of these legendary lawyers could hold the key to the conspiracy, revealing how the powerful manipulated gold and power. Your thematic circuit of Johannesburg will have offered you an interactive and immersive visit to the heart of the city's history, a deep exploration of Gauteng's heritage, and an understanding of the dynamics that shaped this ever-evolving metropolis.
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.
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.
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Explore the history of gold extraction, from the discovered veins to the extreme working conditions that built Johannesburg's fortune.
Search for a secret ledger, hidden testimonies, and carved clues to reveal the dark side of the gold rush.
Walk through iconic locations that witnessed Johannesburg's emergence from a mining camp into a major South African city.
Gold shines, but shadows linger.
Uncover the true cost of the Witwatersrand's wealth.
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 the effervescence of the 1886 Johannesburg gold rush and thwart a conspiracy threatening to collapse the nascent mining empire.
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
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More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

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Decipher hidden testimonies from apartheid's bureaucratic archive and expose the architects of Johannesburg's segregation laws before the truth is buried forever.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Entrée payante. Explorez le complexe historique, incluant l'ancien fort de Johannesburg (1893) et la prison des femmes 'Number Four' (1909-1982), site de détention de Nelson Mandela et Mahatma Gandhi au début du XXe siècle.
Prix variables selon la production. Découvrez ce centre culturel multiracial de Newtown, construit en 1915 comme marché et converti en théâtre en 1976, célèbre pour avoir hébergé la première production multiraciale en 1976.
Budget moyen 15-25€. Profitez des saveurs diverses du Gauteng dans ce marché artisanal et alimentaire réputé du Maboneng Precinct, ouvert le dimanche.
Accès libre. Flânez dans ce quartier réhabilité de Johannesburg, connu pour son art de rue, ses galeries d'art indépendantes et ses cafés animés, offrant un aperçu de la culture urbaine contemporaine.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.