• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
SuccessEntrepreneurs
Europe

Tough Mudder’s millionaire founder lured investors for his immersive new gaming venture with a live demo and scoreboard to heighten ‘fear of missing out’

Orianna Rosa Royle
By
Orianna Rosa Royle
Orianna Rosa Royle
Associate Editor, Success
Down Arrow Button Icon
Orianna Rosa Royle
By
Orianna Rosa Royle
Orianna Rosa Royle
Associate Editor, Success
Down Arrow Button Icon
March 24, 2024, 5:00 PM ET
Will Dean, founder of Tough Mudder
"Greed starts negotiations, fear closes them," says the serial entrepreneur behind Tough Mudder, Will Dean. Courtesy of Rightway Comms

Without investment, turning a million-dollar idea on paper into a reality is nothing more than a dream. Or at least, that’s usually the case. Tough Mudder, the military-style endurance experience—where contestants looking to test their mental and physical limits can take on 5K to 24-hour muddy obstacle courses that require them to run, jump, crawl, climb and swim—was the exception to this rule. 

Its founder Will Dean, a former British counter-terrorism officer, was forced to self-finance the obstacle course after investors couldn’t wrap their heads around why anyone would pay to go through such torture.

“We found a small ski hill in the middle of nowhere in Pennsylvania, we built a website and then suddenly we were selling tickets and I realized I don’t need to raise any money,” he recalls to Fortune. “We sold 5000 tickets in three weeks, so it turns out they were wrong.”

Tough Mudder went on to become one of the U.S.’ fastest-growing athletic and “team bonding” activities, by 2017 it was turning more than $125 million a year, as per the Financial Times and over 6 million people have completed the obstacle course since its launch in 2009.

But by 2020 the company plunged into administration following various disputes and was sold to Spartan.

Two years before it all came crashing down for Tough Mudder, Dean cashed in on his brainchild for “millions”, bought a new house, and after “three months proper off” started brainstorming his next venture.

The British entrepreneur’s second light bulb moment came on a family day out with his two kids at a VR experience on a wet Sunday afternoon.

“I found myself with motion sickness,” he remembers, adding that it resulted in him throwing up in a Swansea shopping mall bin.

“If VR is succeeding and people are doing it, yet in my experience it’s antisocial, not fun, and it makes me sick—you can’t help but think I could do this better.

“Having finished Tough Mudder, which was all about bringing people together through sheer physical endeavor, I thought to myself: I wonder if I can create some sort of business that uses tech in a similar way to create shared memories?”

Nine months later, he brought David Spindler, a fellow Tough Mudder veteran, on board as co-founder and CFO and built a simple prototype for what is now Immersive Gamebox in a warehouse in North London.

All of the games, which currently include ones based on Ghostbusters, Black Mirror and Paw Patrol, put the players in the heart of those imaginary worlds with rescue missions and virtual villains displayed on the touch-sensitive walls, paired with surround sound and motion trackers—no headsets needed.

But Dean would have to impress investors to get his idea off the ground.

“With Tough Mudder, you could sell the ticket before you built the thing,” the Harvard Business School alum says. “With this business, you’ve got to build the thing before you sell the ticket.”

How he literally played investors off against each other

The entrepreneur spent days pitching for funding for business idea number two, a London-based immersive group gaming experience, before offering investors the chance to go head-to-head in a live demo.

He emailed venture capitalists inviting them to test the game for themselves while flexing that he knows “a thing or two about putting on live experiences and selling tickets”.

“I’m not Elon Musk, but because I’ve created Tough Mudder, all the major funds were all willing to come and at least see what I was up to,” Dean says. “The idea was to make sure they got a high score and then they’d post-rationalize everything.”

The CEO staggered each firm’s appointment, used their company name as their team name, and had their scores ranked on a public leaderboard.

“It was very deliberate,” Dean adds. “Look at all these other people—if you don’t invest, one of these other people will.”

It worked. Investors injected $3.5M into his venture and the startup officially opened for business in October 2019. 

Since then, it has raised $65 million to date from backers including Index Ventures and Sweet Capital; partnered with the likes of Netflix for a “Squid Game” experience; and expanded beyond U.K. territory to over 25 locations spanning from the States and Dubia to Australia and Berlin. 

Today, 1.2 million people have given the in-person gaming experience a go and the plan now is to open 1,000 sites by 2028.

‘Create this fear of missing out’

The reason Dean’s investment hack did the trick isn’t just because getting a high score stroked the egos of venture capitalists playing at Immersive Gamebox (although, he admits, that helped.)

It’s because they could see who they could lose the business to—and that’s something any entrepreneur can emulate.

“You have to create this sort of fear of missing out,” Dean says. “I remember someone saying, ‘Greed starts negotiations, fear closes them.’”

So how can an aspiring entrepreneur instill fear in big-shot investors?

Dean has a few tricks up his sleeve: Turn up to a pitching presentation with the wrong investor’s name on the deck. 

“Say, ‘Oh, I’m sorry, that’s still that presentation has the name of one of your competitors,’” he laughs. “I don’t know how that happened.” 

He’s even emailed investors in the past with the wrong email, before swiftly sending a follow-up note saying: “Please ignore that email that was meant for somebody else.”

“Things like that are not bad ways to create a bit of competitive tension,” Dean assures.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Orianna Rosa Royle
By Orianna Rosa RoyleAssociate Editor, Success
Instagram iconLinkedIn iconTwitter icon

Orianna Rosa Royle is the Success associate editor at Fortune, overseeing careers, leadership, and company culture coverage. She was previously the senior reporter at Management Today, Britain's longest-running publication for CEOs. 

See full bioRight Arrow Button Icon

Latest in Success

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
Economy
America borrowed $43.5 billion a week in the first four months of the fiscal year, with debt interest on track to be over $1 trillion for 2026
By Eleanor PringleFebruary 10, 2026
23 hours ago
placeholder alt text
C-Suite
Meet Jody Allen, the billionaire owner of the Seattle Seahawks, who plans to sell the team and donate the proceeds to charity
By Jake AngeloFebruary 9, 2026
2 days ago
placeholder alt text
AI
As billionaires bail, Mark Zuckerberg doubles down on California with $50 million donation
By Sydney LakeFebruary 9, 2026
2 days ago
placeholder alt text
Economy
It turns out that Joe Biden really did crush Americans' dreams for the future. Just look at how the vibe changed 5 years ago
By Jake AngeloFebruary 10, 2026
14 hours ago
placeholder alt text
Economy
China might be beginning to back away from U.S. debt as investors get nervous about overexposure to American assets
By Eleanor PringleFebruary 9, 2026
2 days ago
placeholder alt text
Success
Super Bowl champion Sam Darnold says his plumber dad played with him every day after work, no matter how tough his day was—and that taught him resilience
By Emma BurleighFebruary 9, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Success

shopper
BankingFood and drink
Meat snacks have emerged as the clear winner in America’s seismic GLP-1 consumption shift, while popcorn is down
By Nick LichtenbergFebruary 10, 2026
14 hours ago
Head coach Mike MacDonald
SuccessCareers
Seahawks head coach turned down a cushy career in finance at KPMG for a football internship—12 years later, he won the Super Bowl at 38
By Emma BurleighFebruary 10, 2026
18 hours ago
Chuck Robbins
SuccessThe Promotion Playbook
Cisco CEO Chuck Robbins says interviews for promotions are ‘stupid’— he cares more about whether your coworkers think you deserve a raise
By Preston ForeFebruary 10, 2026
18 hours ago
SuccessOlympics
U.S. Olympians earn just 5% of what Singapore pays—many are forced to juggle jobs as baristas, brokers, and dentists just to get by
By Sydney LakeFebruary 10, 2026
20 hours ago
chapman
CommentaryGender Issues
Sam Altman told me AI should be ‘an equalizing force in society.’ That’s why I’m working on the $1.6 trillion AI gender gap
By Valerie ChapmanFebruary 10, 2026
20 hours ago
Photo of Colin Kaepernick
SuccessCareers
A decade after his NFL kneeling controversy, Colin Kaepernick has a message for Gen Z: Don’t let the fear of backlash silence you
By Orianna Rosa RoyleFebruary 10, 2026
20 hours ago