Robert F. "Toby" Fox (born October 11, 1991) is an American video game developer and composer.
He is also the creator and head of the ongoing development of Deltarune, which contains many characters and features from Undertale, and has garnered significant praise.
Other Japanese role-playing games, such as EarthBound, Secret of Mana and Super Mario RPG served as major inspirations; Fox looked up to Yoko Shimomura's works in particular.
He then moved on to compose a variety of music for Andrew Hussie's 2009 webcomic Homestuck during his senior year of high school.
Though he did not initially respond when Hussie started a Music Contribution Team in April 2009 and put up a news post asking composers to participate, Hussie took note of his work when Fox started uploading piano covers of the webcomic's music on the MS Paint Adventures forums.
[11] Fox worked on the entire game independently, besides the art assets—which he asked Temmie (Tuyoki) Chang to help with—to avoid relying on others.
[18] Despite Undertale's awards and widespread acclaim, Fox wrote that his personal opinion was that the game was still "niche" and deserved an "8/10" review score.
Ultimate as a Mii costume available through downloadable content, along with an instrumental composition "Megalovania", for which Fox provided a new arrangement.
[23][24][25] On October 30, 2018, Fox tweeted a request for fans of Undertale to check the game's official Twitter account in 24 hours.
[26][27] On November 1, Fox shared more details regarding the game, including that the rest of the chapters were expected to release simultaneously, but work had not yet started, and there was no estimated timeframe for completion.
[31] On September 17, 2021, Fox released the second chapter of Deltarune for free since "the world has been really tough for everybody recently", referring to the struggles of the COVID-19 pandemic.