Toby Fox
Updated: 12/21/2025, 9:30:34 AM Wikipedia source
Robert F. "Toby" Fox (born October 11, 1991) is an American video game developer, composer, and voice actor. He is best known for developing the role-playing video games Undertale and Deltarune. Fox's early work consisted of developing RPG Maker games and creating ROM hacks like the EarthBound Halloween Hack. Fox then moved on to composing music, including for Andrew Hussie's 2009 webcomic Homestuck. In 2015, Fox created Undertale, which became a breakout hit and pop-culture phenomenon. It has received nominations for a British Academy Game Award, three Game Awards, and D.I.C.E. Awards. Following the success of Undertale, he went on to compose music for several other indie games, as well as contributing to the soundtracks of Super Smash Bros. Ultimate and the Pokémon video games. From 2018 onwards, Fox started development of Deltarune, an episodic video game set in a parallel universe to Undertale.
Infobox
Born
Robert F. Fox (1991-10-11) October 11, 1991 (age 34)Manchester, New Hampshire, U.S.
Other names
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Education
Northeastern University (BS)
Occupations
Video game developercomposer
Years active
2008–present
Works
UndertaleDeltarune
Website
toby.fangamer.com
Tables
· Works › Video games
2016
Rose of Winter
Role(s)
No
Notes
Yes
| Year | Title | Director | Composer | Writer | Platforms | Ref. |
| 2008 | EarthBound Halloween Hack | Yes | Yes | Yes | Super Nintendo (ROM hack) | |
| 2015 | Undertale | Yes | Yes | Yes | Windows, macOS, Linux, PlayStation 4, PlayStation Vita, Nintendo Switch, Xbox One | |
| 2016 | Rose of Winter | No | Yes | No | Windows | |
| 2017 | Hiveswap: Act 1 | No | Yes | No | Windows, macOS, Linux | |
| 2018 | Deltarune Chapter 1 | Yes | Yes | Yes | Windows, macOS, PlayStation 4, Nintendo Switch, PlayStation 5, Nintendo Switch 2 | |
| 2019 | Escaped Chasm | No | Yes | No | Windows | |
| Little Town Hero | No | Yes | No | Windows, PlayStation 4, Nintendo Switch, Xbox One | ||
| 2020 | Dweller's Empty Path | No | Yes | No | Windows | |
| Hiveswap: Act 2 | No | Yes | No | Windows, macOS, Linux | ||
| 2021 | Deltarune Chapter 2 | Yes | Yes | Yes | Windows, macOS, PlayStation 4, Nintendo Switch, PlayStation 5, Nintendo Switch 2 | |
| 2022 | Pokémon Scarlet and Violet | No | Yes | No | Nintendo Switch | |
| 2025 | Deltarune Chapters 3+4 | Yes | Yes | Yes | Windows, macOS, PlayStation 4, Nintendo Switch, PlayStation 5, Nintendo Switch 2 | |
| Off (remaster) | No | Yes | No | Windows, Nintendo Switch |
· Works › Video games › Future games
2026
TBA
Role(s)
Deltarune Chapter 6
Notes
Yes
| Year | Title | Director | Composer | Writer | Platforms | Ref. |
| 2026 | Deltarune Chapter 5 | Yes | Yes | Yes | Windows, macOS, PlayStation 4, Nintendo Switch, PlayStation 5, Nintendo Switch 2 | |
| TBA | Deltarune Chapter 6 | Yes | Yes | Yes | ||
| Deltarune Chapter 7 | Yes | Yes | Yes |
· Works › Other credits
2009–2016
2009–2016
Year
2009–2016
Media type
Webcomic
Media title
Homestuck
Role
Composer
2010
2010
Year
2010
Media type
Album
Media title
The Baby is You
Role
Writer, composer, vocalist
Notes
Album made for Homestuck
2012
2012
Year
2012
Media type
Album
Media title
I Miss You - EarthBound 2012
Role
Composer
2012
2012
Year
2012
Media type
Website
Media title
tane.us
Role
Guest arrangement
Notes
Metronomy - Black Eye Burnt Thumb (Toby "Radiation" Fox CHIP MIX)
2018
2018
Year
2018
Media type
Album
Media title
Pray
Role
Guest composer, lyricist and vocalist
Video game
Video game
Year
Video game
Media type
Black Bird
Media title
Game testing
2020
2020
Year
2020
Media type
Comic
Media title
Hobonichi Mother Project "Pollyanna" comic
Role
Contributor
Music video
Music video
Year
Music video
Media type
Chip Tanaka/Hammerhead Shark Song
Media title
Director/animator (music video)
2021
2021
Year
2021
Media type
Video game
Media title
Get in the Car, Loser!
Role
Credited for providing guest items and stories
Song
Song
Year
Song
Media type
"Myths You Forgot"
Media title
Featured artist
Role
In collaboration with Camellia
2022
2022
Year
2022
Media type
Song
Media title
"Skies Forever Blue"
Role
Composer, writer
Notes
In collaboration with Itoki Hana
Commercial
Commercial
Year
Commercial
Media type
Pocari Sweat
Media title
Composer
Role
In collaboration with PUNPEE and imase
2023
2023
Year
2023
Media type
Song
Media title
"The Greatest Living Show"
Role
Composer, writer
Notes
In collaboration with Itoki Hana
Song
Song
Year
Song
Media type
"Prelude"
Media title
Composer
Role
In collaboration with bo en
Animated television series
Animated television series
Year
Animated television series
Media type
We Baby Bears
Media title
Voice actor (2 episodes)
Downloadable content
Downloadable content
Year
Downloadable content
Media type
Pokémon Scarlet and Violet: The Hidden Treasure of Area Zero
Media title
Composer
Role
Remix of Ed Sheeran's "Celestial"
2024
2024
Year
2024
Media type
Song
Media title
"Fallen Wing"
Role
Composer
Notes
As a guest composer for Hololive VTuber Amane Kanata's Unknown DIVA album, with Camellia
Song
Song
Year
Song
Media type
"Dead Ma'am's Chest"
Media title
Composer
Role
In collaboration with Hololive VTuber Houshou Marine and Camellia
2025
2025
Year
2025
Media type
Web series
Media title
Homestuck: The Animated Pilot
Role
Composer, Executive Producer, voice actor (John Egbert)
Notes
Credited as Toby "Radiation" Fox
| Year | Media type | Media title | Role | Notes | Ref. |
| 2009–2016 | Webcomic | Homestuck | Composer | ||
| 2010 | Album | The Baby is You | Writer, composer, vocalist | Album made for Homestuck | |
| 2012 | Album | I Miss You - EarthBound 2012 | Composer | ||
| 2012 | Website | tane.us | Guest arrangement | Metronomy - Black Eye Burnt Thumb (Toby "Radiation" Fox CHIP MIX) | |
| 2018 | Album | Pray | Guest composer, lyricist and vocalist | ||
| Video game | Black Bird | Game testing | |||
| 2020 | Comic | Hobonichi Mother Project "Pollyanna" comic | Contributor | ||
| Music video | Chip Tanaka/Hammerhead Shark Song | Director/animator (music video) | |||
| 2021 | Video game | Get in the Car, Loser! | Credited for providing guest items and stories | ||
| Song | "Myths You Forgot" | Featured artist | In collaboration with Camellia | ||
| 2022 | Song | "Skies Forever Blue" | Composer, writer | In collaboration with Itoki Hana | |
| Commercial | Pocari Sweat | Composer | In collaboration with PUNPEE and imase | ||
| 2023 | Song | "The Greatest Living Show" | Composer, writer | In collaboration with Itoki Hana | |
| Song | "Prelude" | Composer | In collaboration with bo en | ||
| Animated television series | We Baby Bears | Voice actor (2 episodes) | |||
| Downloadable content | Pokémon Scarlet and Violet: The Hidden Treasure of Area Zero | Composer | Remix of Ed Sheeran's "Celestial" | ||
| 2024 | Song | "Fallen Wing" | Composer | As a guest composer for Hololive VTuber Amane Kanata's Unknown DIVA album, with Camellia | |
| Song | "Dead Ma'am's Chest" | Composer | In collaboration with Hololive VTuber Houshou Marine and Camellia | ||
| 2025 | Web series | Homestuck: The Animated Pilot | Composer, Executive Producer, voice actor (John Egbert) | Credited as Toby "Radiation" Fox |
References
- New Hampshire Union Leaderhttps://www.unionleader.com/voices/city_matters/city-matters-secretive-nh-game-designer-created-undertale-video-game/article_ef527592-4b1a-5402-8393-944173180028.html
- cocatalog.loc.govhttps://web.archive.org/web/20220108145429/https://cocatalog.loc.gov/cgi-bin/Pwebrecon.cgi?v1=2&ti=1%2C2&Search_Arg=undertale&Search_Code=TALL&CNT=25&PID=2GBPDlE9V8lZU7vODNZ89kFfz&SEQ=20220108095355&SID=1
- Debug
- "Indie Dev Spotlight: Toby Fox and His Success with Undertale - Total Apex Gaming"https://totalapexgaming.com/horror/indie-dev-spotlight-toby-fox/
- PC Gamerhttps://www.pcgamer.com/the-making-of-undertale/
- www.hardcoregaming101.nethttp://www.hardcoregaming101.net/earthbound-the-halloween-hack/
- Polygonhttp://www.polygon.com/2013/1/24/3780850/land-of-memes-and-trolls-the-epic-and-ridiculous-self-aware-world-of
- Ars Technicahttps://arstechnica.com/gaming/2018/07/steam-data-leak-reveals-precise-player-count-for-thousands-of-games/
- CliQisthttps://web.archive.org/web/20191223171643/http://cliqist.com/2015/09/29/undertale-new-cult-hit-making/
- VG247https://www.vg247.com/rocket-league-the-witcher-3-fallout-4-others-up-for-bafta-best-game-award
- Polygonhttps://www.polygon.com/2015/11/13/9728874/the-game-awards-2015-nominees/
- Polygonhttps://www.polygon.com/2016/1/13/10760412/dice-awards-2016-nominees/
- Game Informerhttps://web.archive.org/web/20160130192250/http://www.gameinformer.com/b/podcasts/archive/2015/10/15/gi-show-_1320_-yoshis-woolly-world_2c00_-star-wars_3a00_-battlefront_2c00_-undertale-toby-fox.aspx
- Kotakuhttps://kotaku.com/undertale-creator-shares-notebook-full-of-early-concept-1790978697
- Rock, Paper, Shotgunhttps://www.rockpapershotgun.com/2016/09/15/undertale-launched-a-year-ago-today/
- Steamedhttps://steamed.kotaku.com/undertale-creator-its-ok-if-people-dislike-the-game-1751013241
- IGNhttp://www.ign.com/articles/2016/09/16/undertale-creator-releases-unused-music-to-celebrate-1-year-anniversary
- Destructoidhttps://www.destructoid.com/ashly-burch-toby-fox-and-mike-z-join-the-profound-waste-of-time-team-404852.phtml
- Forbeshttps://www.forbes.com/profile/toby-fox/
- Nintendo Lifehttps://www.nintendolife.com/news/2022/10/random-you-can-kind-of-thank-toby-fox-for-sakurais-english-youtube-channel
- Kotakuhttps://kotaku.com/undertales-sans-joins-smash-bros-as-a-mii-fighter-cost-1837885342
- Polygonhttps://www.polygon.com/2019/9/4/20850211/sans-undertale-smash-bros-ultimate/
- Polygonhttps://www.polygon.com/2018/10/31/18044640/deltarune-free-download-undertale-game
- Rock Paper Shotgunhttps://www.rockpapershotgun.com/2018/11/01/deltarune-chapter-1-undertale-sequel/
- App Triggerhttps://apptrigger.com/2018/11/01/deltarune-toby-fox-full-release-plans/
- NextN: ¡Actualidad Nintendo! ¡Todas las noticias Nintendo Switch!https://www.nextn.es/2019/06/deltarune-toby-fox/
- IGN Japanhttps://jp.ign.com/deltarune/36645/news/deltarunecdtundertale
- IGNhttps://www.ign.com/articles/deltarune-will-be-released-once-chapter-4-is-done-toby-fox-confirms
- Gematsuhttps://www.gematsu.com/2024/10/deltarune-chapters-3-and-4-to-launch-in-2025
- IGNhttps://www.ign.com/articles/deltarune-chapters-3-and-4-are-launching-alongside-the-nintendo-switch-2-in-june
- Esports Illustrated On SIhttps://www.si.com/esports/news/deltarune-chapter-3-and-4-release-time-nintendo-switch-2
- Eurogamer.nethttps://www.eurogamer.net/dont-worry-undertale-fans-toby-fox-is-still-hard-at-work-on-parallel-story-deltarune
- Game Ranthttps://gamerant.com/deltarune-chapter-5-release-window/
- IGNhttps://www.ign.com/articles/deltarune-chapter-5-will-release-in-2026
- Polygonhttps://www.polygon.com/2019/11/1/20943435
- Rock Paper Shotgunhttps://www.rockpapershotgun.com/2019/04/02/escaped-chasm-is-a-free-short-from-undertales-temie-chang/
- NMEhttps://www.nme.com/news/undertales-toby-fox-is-doing-music-for-pokemon-scarlet-and-violet-3238843
- GameSpothttps://www.gamespot.com/articles/undertales-toby-fox-composed-music-for-pokemon-scarlet-and-violet/1100-6504050/
- Eurogamerhttps://www.eurogamer.net/toby-fox-remixes-ed-sheeran-for-pokemon-scarlet-and-violet-dlc-the-indigo-disk
- Kotakuhttps://kotaku.com/games/touhou-danmaku-kagura-phantasia-lost-toby-fox-and-zun-u-dot-n-owen-was-hero
- Nintendo Lifehttps://www.nintendolife.com/news/2024/09/new-touhou-rhythm-game-mixes-bullet-hell-falling-notes-and-toby-fox-tunes
- square-enix-games.comhttps://www.square-enix-games.com/es_XL/news/live-a-live-yoko-shimomura-toby-fox-pt-1
- 電ファミニコゲーマー – ゲームの面白い記事読んでみない？https://news.denfaminicogamer.jp/interview/181019
- 任天堂ホームページhttps://www.nintendo.com/jp/topics/article/0e438e10-2b35-11e9-b104-0a6d14145cb1
- Existential Gamerhttps://archive.today/20151117161517/http://existentialgamer.com/interview-toby-fox-of-undertale
- GameSpothttps://www.gamespot.com/articles/undertale-developer-toby-fox-gives-substantial-upd/1100-6482178/
- GamesRadar+https://www.gamesradar.com/games/super-smash-bros/super-smash-bros-director-masahiro-sakurai-has-a-friend-in-undertale-developer-toby-fox-all-because-of-how-deeply-their-posts-are-read-into/
- earthboundcentral.comhttps://web.archive.org/web/20211214011040/https://earthboundcentral.com/2009/10/earthbound-halloween-hack/
- Kotakuhttps://kotaku.com/the-best-video-game-music-of-2016-1790344390
- PC Gamerhttps://www.pcgamer.com/escaped-chasm-is-a-free-game-about-loneliness-from-undertales-artist/
- Siliconerahttps://www.siliconera.com/undertale-artist-temmie-chang-releases-dwellers-empty-path/
- Polygonhttps://www.polygon.com/pokemon/23150300/undertale-toby-fox-pokemon-scarlet-violet-music-composer
- Nintendo Lifehttps://www.nintendolife.com/news/2025/01/undertale-creator-toby-fox-joins-off-rpg-soundtrack
- Eurogamerhttps://www.eurogamer.net/deltarunes-closing-credits-confirm-chapter-5-should-be-with-us-comparatively-soon
- GamesRadarhttps://www.gamesradar.com/games/rpg/deltarune-has-finally-been-given-a-price-tag-and-toby-fox-says-that-future-chapters-beyond-4-will-be-added-as-free-updates-so-you-only-have-to-buy-the-game-once/
- Bandcamphttps://homestuck.bandcamp.com/album/hiveswap-friendsim
- Rock, Paper, Shotgunhttps://www.rockpapershotgun.com/hiveswap-release-date-confirmed
- PCGamesNhttps://www.pcgamesn.com/yiik/new-games-yiik-release-date
- Omori Gino's Jukebox
- Siliconerahttps://www.siliconera.com/beatmania-iidx-30-resident-will-come-with-a-new-toby-fox-song/
- PC Gamerhttps://www.pcgamer.com/this-single-serving-ghibli-esque-adventure-about-work-and-worms-will-warm-your-heart/
- Gematsuhttps://www.gematsu.com/2023/08/touhou-danmaku-kagura-phantasia-lost-for-pc-launches-february-8-2024
- IGNhttps://www.ign.com/videos/fields-of-mistria-official-trailer-wholesome-direct-2023
- Gamerhttps://www.gamer.ne.jp/news/202312140047/
- Polygonhttps://www.polygon.com/pokemon/2019/11/13/20963640/undertale-toby-fox-song-pokemon-sword-shield-homestuck-the-baby-is-you
- Black Bird
- Hobonichi Mother Projecthttps://www.1101.com/mother_project/items/book_pollyanna_en.html
- Get in the Car, Loser!
- Siliconerahttps://www.siliconera.com/toby-fox-collaborated-with-omocat-on-skies-forever-blue-song/
- SoraNews24 -Japan News-https://soranews24.com/2022/04/01/undertales-toby-fox-composed-the-music-for-newest-japanese-commercial-for-pocari-sweat/
- KeenGamerhttps://www.keengamer.com/articles/news/the-greatest-living-show-a-music-collaboration-ft-itoki-hana-toby-fox/
- Comicbookhttps://comicbook.com/tv-shows/news/cartoon-network-we-baby-bears-return-special-guest-anderson-paak-willow-smith/
- famitsu.comhttps://www.famitsu.com/news/202403/15337235.html
- Siliconerahttps://www.siliconera.com/new-hololive-vtuber-houshou-marine-song-written-by-toby-fox/
- ComicBook.comhttps://comicbook.com/anime/news/homestuck-animated-series-hazbin-hotel-creators/
- "It's my 26th birthday"https://x.com/tobyfox/status/918137771595829250
- "DELTARUNE CHAPTERS 1-4 RELEASE DATE ANNOUNCEMENT". Toby Fox. April 2, 2025. Retrieved August 8, 2025.https://toby.fangamer.com/newsletters/release-date/
- Toby Fox DJs for Skaianet Radio 8/17/10https://www.youtube.com/watch?v=fIImmJicEFA&list=PL44x_5XRP17xhbCpTxndypUcXB5izF43u
- Roach, James (December 4, 2019). "'yeah, it is'". tumblr. Retrieved August 20, 2023. "the title is meant to answer the qhttps://web.archive.org/web/20230820165253/https://jamesroachmusic.tumblr.com/post/189479481402/yeah-it-is-the-title-is-meant-to-answer-the
- "I Miss You - EarthBound 2012, by Various Artists". Bandcamp. Retrieved January 30, 2024.https://sleepytimejesse.bandcamp.com/album/i-miss-you-earthbound-2012
- Brian Lee. "ABOUT TANE". tane.us. Retrieved September 19, 2023.https://tane.us/abouttane.html
- "I composed a vocal song for my friend @1t0lc1 (Itoki Hana's) new album, Pray"https://x.com/tobyfox/status/1026500164217962498
- "Chip Tanaka / Hammerhead Shark Song from 2nd album "Domingo" (Release: July 15th, 2020)". via YouTube. July 15, 2020. Rhttps://www.youtube.com/watch?v=EWyFwDxgj04
- かめりあ(Camellia). "Myths You Forgot (feat. Toby Fox), by かめりあ(Camellia)". Bandcamp. Retrieved September 8, 2023.https://cametek.bandcamp.com/track/myths-you-forgot-feat-toby-fox
- "prelude, by bo en". Bandcamp. Retrieved January 30, 2024.https://boen.bandcamp.com/track/prelude