ProbablyMonsters Harold Ryan CEO and Founder

Harold Ryan

CEO and Founder

With over 20 years of games industry success, Harold Ryan has been responsible for generating over $5B of revenue through iconic franchises such as Halo, Destiny, Age of Empires, and MechWarrior.

Ryan has established a new category of gaming company. In 2016, he founded ProbablyMonsters to drive positive change in the industry by fostering a developer-led culture in the belief that exceptional games will follow. Five years later, Harold raised $200 million in Series A funding, the largest in video game history.

He has pioneered a game development ecosystem for building game studios, create original AAA game IP, and innovate with technologies that bring game developers and players together in a model where everyone can focus on what they do best. This new approach to AAA game development of daring to prioritize stable and creatively rewarding careers for developers is what has positioned ProbablyMonsters as the defender of developers.

To date, ProbablyMonsters has attracted top talent from 70 leading games, entertainment, and tech companies. The company has built three announced studios, each developing a signature player experience in a unique genre. Firewalk is developing a multiplayer game that will be published by PlayStation worldwide. Cauldron is developing a single-player adventure-focused experience, and the third, as yet unnamed studio, is developing a next-gen co-op RPG title.

As CEO, Ryan leverages his experience from building some of the world’s most influential and successful gaming studios and franchises. He is known for consistently creating exceptional teams and results—both critically and commercially—with scalable tools, efficient process, and an atmosphere of respect and transparency. His entrepreneurial and altruistic spirit have been the inspiration for millions of gamers, positioning him as one of the most acclaimed and sought-after video game executives in the entertainment industry.

Ryan took his first role in gaming in 1998 as a game tester for Microsoft, leading to increased management responsibilities for over 30 game titles across leading studios including FASA Studios, Ensemble Studios, and Bungie. During his tenure at Microsoft, Ryan also established the hardware compatibility team for the games division, building an industry leading standard for OEM and IHV partnerships, and delivering best in-class performance to Windows gamers worldwide.

With increasing leadership roles at Bungie from 2000 through 2016 as the company grew from less than 100 staff to over 600 employees, Ryan led Bungie to become one of the largest and most successful independent game development companies of all time. At Bungie, his credits include the key franchise releases of Halo, Halo 2, Halo 3, Halo 3 ODST, Halo Reach, Bungie.net, and Destiny. Ryan’s tenure at Bungie is an inspiration to millions of gamers and professionals in the industry, with a career beginning in QA and ultimately leading the studio as CEO, President, and Chairman of the Board.

Ryan’s many achievements before founding ProbablyMonsters include successfully negotiating Bungie’s divestiture from Microsoft in 2007. In doing so, he demonstrated a vision for a establishing a preeminent independent game development company. To set Bungie on a new path, Ryan secured strategic partnerships with Activision, Sony, and Microsoft for a ten-year horizon securing over a billion dollars in funding and delivering billions more in revenue. Ryan has won multiple awards, including Game of the Year for Destiny in 2015.

A graduate of Washington State University with degrees in Physics, Electrical Engineering, and Mathematics, Ryan lives in Issaquah, Washington. He is an active outdoorsman who’s as comfortable hiking for weeks, building a home, or splitting wood as he is negotiating major deals in the boardroom.