Toby Fox Biography: Gaming, Age, Parents, Net Worth, Siblings, Height, Instagram, Girlfriend, Wikipedia

Robert F. Fox, widely known by his stage name Toby Fox (also known as Radiation or FwugRadiation), is an American video game developer, composer, and voice actor best known for creating the critically acclaimed role-playing games Undertale and Deltarune.

With a distinctive chiptune-inspired musical style and heartfelt storytelling, he rose from independent projects and fan works to international fame through Undertale’s massive success in 2015.

Toby Fox is celebrated for his solo development approach, memorable characters, and innovative blending of humor, music, and emotional depth in indie gaming.

Quick Facts

• Full Name: Robert F. Fox
• Stage Name: Toby Fox
• Born: October 11, 1991
• Age: 34 years old
• Birthplace: Manchester, New Hampshire, U.S.
• Nationality: American
• Occupation: Video game developer, Composer, Voice actor
• Height: 173 cm
• Parents: Robert Fox and Barbara Fox
• Siblings: 3
• Spouse: None
• Children: None
• Relationship: Single
• Net Worth: $5 million

Early Life and Education

Robert F. Fox was born on October 11, 1991, in Manchester, New Hampshire, to Robert Fox and Barbara Fox. He grew up with three brothers, and together they experimented with game development using RPG Maker 2000.

He attended Manchester High School Central and later graduated from Northeastern University in 2014 with a Bachelor of Science in Environmental Science.

During college, he began conceptualizing many ideas and character designs that would later appear in Undertale. His ethnicity is White/Caucasian, and he was raised Christian (Episcopalian).

Career

Toby Fox began his creative journey in high school by making EarthBound ROM hacks and unfinished RPGs with his brothers. He gained early recognition in online communities like Starmen.net under the alias Radiation, where he composed music and contributed to fan projects.

He also created music for the webcomic Homestuck and other indie titles, building a following for his catchy, nostalgic chiptune tracks and quirky style.

His major breakthrough came with Undertale in 2015, a game he largely developed solo while collaborating with artist Temmie Chang.

The title achieved massive commercial and critical success, selling millions of copies and winning numerous awards for its innovative combat system, memorable soundtrack, and multiple endings.

This opened doors for further work, including contributions to Pokémon games and the development of Deltarune, a parallel project released in episodic chapters starting in 2018.

Toby Fox continues to expand his influence in the gaming world through ongoing Deltarune chapters and soundtrack releases.

His approach to independent development and focus on player choice and emotional storytelling have inspired a new generation of creators and cemented his legacy as one of the most impactful figures in modern indie game design.

Social Media

• Instagram Handle: @toby.radiationfox
• Facebook Handle: Toby Fox
• Twitter Handle: @tobyfox

Personal Life

Robert F. Fox remains single and keeps his personal life very private. He has a longtime professional collaboration and friendship with artist Temmie Chang, which has frequently sparked fan speculation, though nothing romantic has been confirmed.

He values his privacy and focuses much of his energy on creative work and family. Fox has occasionally shared glimpses into his life through interviews and social media but generally avoids public discussion of his relationships or daily routines.

Net Worth

Robert F. Fox has an estimated net worth of around $5 million.

His income primarily comes from sales of Undertale and Deltarune (including millions of copies sold and ongoing royalties), soundtrack releases, merchandise, and additional music composition work for other projects such as Pokémon titles.