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NOTE: Sections which have been completed (or are close to completion), have been merged into mainspace, and can be edited directly there if needed. The user draft will remain for sections not yet completed.

FA hook workshopping

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This article's about the reclusive indie developer behind Undertale and Deltarune, video games that have extensively been the subject of fandom, discourse, and controversy online. Toby's separately known for his contributions to multimedia projects over the years, as well as his inspiration from, and ties to, the Japanese game industry.

Following the article's GAN by 1timeuse75 this January, it's been significantly expanded and rewritten by me, 1timeuse75 and co-nominator TheSilksongPikmin, who was a massive help with new content, sourcing, and solving the foam shower infobox image problem. If passed, this will be Wikipedia's third "Video game biography" FA after Satoru Iwata (2015) and Roberta Williams (2022). WALKKKKK (talk) 16:04, 14 September 2026 (UTC)

Travis Mulch

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Other projects

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The video game magazine A Profound Waste of Time has featured Fox as a contributor.[1] Fox has appeared on We Baby Bears.[2] In 2025, he voiced John Egbert in the Homestuck animated pilot.[3]

Philanthropy

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During an Undertale speedrun at the Games Done Quick event AGDQ 2017, Fox made a $10,000 donation.[4] Undertale has been part of several Humble Bundles, collections of games sold to support charity, including two that donated all proceeds to coronavirus relief during the COVID-19 pandemic, raising $6.5 million in 2020 and $1.1 million in 2021.[5][6]

To commemorate Undertale's 7th anniversary in 2022, Fox held the "Spamton Sweepstakes" charity auction on September 17, in support of Child's Play and Pakistan Children Relief, through Deltarune's website.[7] The event ultimately raised $322,805.68.[8] Following a 2024 copyright dispute between the team of Undertale fan game Undertale Yellow and Materia Collective's CEO Sebastian Wolff over the use of Fox's music in the game, Fox donated $20,000 to AbleGamers as a token of apology.[9]

For Undertale's 10th anniversary, Fangamer and Fox held a two-day livestream in support of Doctors Without Borders on September 21 and 22, 2025, holding auctions for collectables and featuring new in-game content exclusive to the stream.[10][11] This livestream raised $361,407 across both days.[12][a]

Influences

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The games of Shigesato Itoi (pictured) were a primary source of inspiration for Fox.

Fox, a fan of Japanese video games since childhood, has cited the Mother series, Touhou Project, Shin Megami Tensei, Cave Story and Brandish among his primary influences.[13][14] Specific gameplay elements in Undertale were drawn from these influences; the ability to talk to and spare enemies instead of fighting them was inspired by a similar mechanic in Shin Megami Tensei.[15]

Fox stated in an interview with YouTube channel "Mother Forever" that he wanted to ask Itoi if he had any interest in creating a new Mother game, as well as assist in its creation, though ultimately never did.[16]




Notes

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  1. GamesRadar+ incorrectly states $322,805.68, the amount raised by the Spamton Sweepstakes.[11]

References

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  1. McFerran, Damien (September 30, 2021). "Acclaimed Video Game Magazine 'A Profound Waste Of Time' Is Getting A Reprint". Nintendo Life. Archived from the original on September 30, 2021. Retrieved September 1, 2026.
  2. Milligan, Mercedes (August 10, 2025). "'Hazbin Hotel' Studio SpindleHorse Reveals 'Homestuck' Toon Pilot with New Trailer". Animation Magazine. Archived from the original on August 18, 2026. Retrieved August 29, 2026.
  3. Lang, Jamie (August 11, 2025). "'Hazbin Hotel,' 'Helluva Boss' Studio SpindleHorse Producing An Animated Pilot For 'Homestuck'". Cartoon Brew. Archived from the original on July 16, 2026. Retrieved August 29, 2026.
  4. Gach, Ethan (January 15, 2017). "Awesome Games Done Quick Raises A Record Breaking $2.2 Million For Cancer Prevention". Kotaku. Archived from the original on May 4, 2025. Retrieved August 28, 2026.
  5. Ziwei, Puah (April 27, 2020). "Humble Bundle raises over $6.5million for coronavirus relief". NME. ISSN 0028-6362. Archived from the original on December 30, 2024. Retrieved August 28, 2026.
  6. Cassidy, Ruth (May 30, 2021). "Humble Heal raises over a million dollars for Covid-19 charities". PC Gamer. ISSN 1080-4471. Archived from the original on March 11, 2026. Retrieved August 28, 2026.
  7. Stanton, Rich (September 15, 2022). "No more Deltarune this year, but here's a look at what's coming". PC Gamer. ISSN 1080-4471. Archived from the original on December 8, 2025. Retrieved August 29, 2026.
  8. Hata (December 2, 2022). "『UNDERTALE』7周年記念イベント「スパムトン・ステークス」日本語サイト公開―ツッコミどころが満載" ["UNDERTALE" 7th Anniversary Event "Spamton Sweepstakes" Japanese Website Launched ― Full of Things to Make Fun Of]. Game*Spark. Archived from the original on July 20, 2024. Retrieved August 29, 2026.
  9. Grayson, Nathan (January 8, 2024). "Undertale Creator Settles Music CEO's Bet Against Fans By Donating $20,000 To Charity". Aftermath. Archived from the original on March 9, 2026. Retrieved August 30, 2026.
  10. Serin, Kaan (September 21, 2025). "Undertale's 10th anniversary stream included new areas and changes to the original RPG that might just connect it to Deltarune even more, and fans are freaking out". GamesRadar+. Archived from the original on August 20, 2026. Retrieved August 29, 2026.
  11. 1 2 Bailey, Dustin (September 22, 2025). "Undertale fans raised over $330,000 for charity at the RPG's 10th anniversary event, where someone paid $11,000 for a "one-of-a-kind" giant Toriel plush". GamesRadar+. Archived from the original on August 25, 2026. Retrieved August 29, 2026.
  12. fab (September 23, 2025). "『UNDERTALE』10周年イベントでの寄付総額が"5000万円"を超える。"ゲームに存在しない新エリア"や"Pルートのサンズ"が登場しファン大興奮の記念イベント。配信で登場した"新エリアやキャラ"のグラフィックス素材、サントラも無料配布中" [Total donations from the "UNDERTALE" 10th anniversary event exceed 50 million yen. A commemorative event which had fans thrilled with the appearance of "new areas not found in the game" and "Sans on the Pacifist Route". Graphics assets and the soundtrack for the "new areas and characters" featured in the livestream are also available for free]. Denfaminico Gamer. Archived from the original on September 23, 2025. Retrieved August 29, 2026.
  13. Cite error: The named reference 4gamer was invoked but never defined (see the help page).
  14. Ishimoto, Shuji (December 20, 2015). "「東方」と「MOTHER」と「真・女神転生」の"カクテル"、2D-RPG『Undertale』開発者Tobyfoxインタビュー" [An Interview with Toby Fox, Developer of the 2D RPG "Undertale": A Cocktail of Touhou, "MOTHER", and "Shin Megami Tensei"]. AUTOMATON MEDIA. Archived from the original on August 24, 2026. Retrieved August 30, 2026.
  15. Couture, Joel (October 26, 2015). "How Undertale makes you think hard before killing monsters". Game Developer. Archived from the original on August 24, 2026. Retrieved August 30, 2026.
  16. Reynolds, Ollie (June 13, 2022). "Random: Undertale Creator Wanted To Help Shigesato Itoi Make Mother 4". Nintendo Life. Archived from the original on November 30, 2025. Retrieved August 30, 2026.

Primary sources

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In the text, these references are preceded by a double dagger (‡):

Works cited

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1timeuse75

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The amount of times I wanted to go to the actual Toby Fox article and couldn't find any hyperlinks to it is too many!

Style

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Fox's style blends Super Nintendo J-RPGs and internet culture. In an interview with Game Informer, Fox said "I've played like basically every Super Nintendo RPG, so they've just kind of formed this cocktail in my head that I can just draw from whenever I want to."[1] His games has been described as "one of the most progressive and innovative RPGs to come in a long time", by GameSpot's Tyler Hicks.[2]

In Undertale, critics have seen it as a critique of the violent nature of mainstream role-playing video games, where players kill enemies in exchange for experience points. Essayist Sean Travers in the Journal of Popular Culture cited its progressive change in tone and disturbing imagery. Travers interprets this as the player becoming the antagonist or a "postmodern psychopath", which is described as a character who commits immoral actions for the sole reason being their consequences. She believed that Undertale is innovative in such games, due to the player's "degree of choice."[3] Kevin Veale of Convergence compared Undertale's management of accountability to that of Night in the Woods, citing the central role the player has in them, while contrasting their use of gameplay elements.[4]

Fox's games have also been noted for having major LGBTQ+ representation. On Fox's old website, he wrote about the development of his EarthBound Halloween Hack. In it he said one of his core desires making the Halloween Hack was to explore homosexual characters in media that were non-stereotypical.[5] Ed Nightingale of PinkNews said Undertale had "brimming" representation, pointing at the characters in the game, such as Frisk and Napstablook, who were both interpreted as non-binary, and the same-sex relationships between Alphys and Undyne, and two Royal Guards who are implied to be in a relationship. The character Mettaton has been read by many as transgender.[6] In Deltarune, the protagonist, Kris Dreemurr, is non-binary.[7]

Fox's music is known for his use of various leitmotifs for his games' characters, with them being used throughout numerous tracks.[8][9][10] Nadia Oxford of USgamer cites "Hopes and Dreams" from Undertale, a track that heavily utilizes motifs, as an example of "how good [Fox] is at turning old songs into completely new experiences".[11] He best known for chiptune compositions, which are often described as "catchy".[12][13] Fox's compositions have been described by multiple journalists as iconic.[10][14] His work outside of Undertale and Deltarune, such as in Pokemon Scarlet and Violet, has also been analyzed. For those games, IGN writer Amelia Zollner described Fox's instrumentation in a song as differing, but still having his "signature musical style".[15]

(Could be moved to Influences or Personal Life):

Fox admitted in an October 2020 interview with the National Public Radio (NPR) for Undertale's fifth anniversary that he sometimes finds it "really hard" to work on games, stating "what is the [fucking] point of this when all of these horrible things [in the world] are happening? Why am I working on games instead of out there fighting?".[16] However, he believes "entertainment can be like mental medicine", since "people need things to give them hope, and sometimes that can be games", stating "as long as you are not ignoring what's going on in the world so that you get to do games, it's good".[16]

(This is an alt version on what's currently in the Personal Life section in mainspace)

He has a relatively restrained presence on social media,[17] however when he does post, Fox is known for posting updates about his projects,[18] and shitposting.[19][20] In response to the MS Paint Adventures forums adding a rule that users can't post art of the characters being pregnant, Fox released a short album titled The Baby is You, about how the Homestuck character Dave Strider is pregnant and the baby is the main character John Egbert. One of the songs used in the album was reused in a Pokémon Sword and Shield track.[10] In 2019, on his Tumblr account, he posted a remixed version of “You’ve Got a Friend in Me” from Toy Story, with creepier orchestration and altered lyrics that say “friend inside me.”[20]

In 2022, in response to his character Sans winning the Tumblr Sexyman tournament, he wrote a fanfic which featured imagined details of Sans's victory.[21] In 2025, Fox teased one of the new characters in Deltarune Chapter 3 though a low-quality video, which was interpreted by Automaton as "more like a shitpost than an actual game teaser."[19] In 2026, he quote-tweeted a trailer for the film Toy Story 5, saying "Super excited this is finally announced. Can't wait for you guys to see what we have in store for you this time." This was in reference to the “friend inside me” remix, which has gone on to become an in-joke in the Deltarune and Undertale community.[20]

TheSilksongPikmin

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Japanese game industry

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Add:

The success of Undertale, especially in Japan, afforded Fox the opportunity to meet Super Smash Bros. creator Masahiro Sakurai.[22] In September 2019, Sans, a character from Undertale, was later included in Super Smash Bros. Ultimate as a Mii costume available through downloadable content, along with an instrumental composition "Megalovania", for which Fox provided a new arrangement.[23][24]

Influences

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Expansion, possibly could use some more work/rearranging

The Mother series by Shigesato Itoi (pictured) has been cited by Fox as his primary influence.

Fox, a fan of Japanese video games since childhood,[25][26] has cited the Mother / EarthBound series as the works that influenced him the most, noting its humor, story, and worldview as primary sources of inspiration.[27] Fox admires its creator Shigesato Itoi, stating in a May 2022 Mother documentary by Nintendo Life that he believed there should not be another Mother game developed without his input, as it was "created at his personal direction".[28] That June, Fox stated in an interview that he previously wanted to ask Itoi if he had any interest in creating a new Mother game, as well as assist in its creation. He revealed ultimately never did, citing a meeting he had with Itoi as why, where he told Fox to make "Undertale 2"; Fox said that meeting him made him realise "no one else could make Mother 4".[29]

Other Japanese games such as Touhou Project, Shin Megami Tensei, Cave Story and Brandish have influenced Fox.[25][26] Specific gameplay elements in Undertale were drawn from these influences; the ability to talk to and spare enemies instead of fighting them was inspired by a similar mechanic in Shin Megami Tensei.[30] Persona 4 of the series was described by Fox as a major inspiration behind one of Undertale's major boss themes, "ASGORE".[31] The Mario series' RPG spin-offs also served as inspirations; Mario & Luigi, along with Touhou Project, inspired the defensive segment in the battle system used in Undertale and later Deltarune.[32]

Fox additionally believes that if he had not discovered and enjoyed Touhou Project, which he had done at age 10, his games would not include bullet hell gameplay.[33][27] He is also a fan of the 2004 surrealist adventure game Yume Nikki, describing its mysterious atmosphere and randomly occurring events as inspirations.[27] Fox enjoys the "game breaking moments" within Hideo Kojima's Metal Gear Solid series, describing them as expressing how game design itself can be part of a game's story.[34] This is a design element that served as a source of inspiration for Fox's own games, which are often noted by critics for their metanarrative elements.[34][35]

The Japanese RPG Live A Live served as an inspiration for Undertale, but Fox has described its influence as being even more prevalent in Deltarune. The game's structure of being split into numerous seperate chapters was influenced by the game, and so was the decision to have the player character Kris "play another role than just a simple hero".[36] Fox has cited the Ace Attorney series as an inspiration for him in relation to Deltarune, particularly in characterization.[37] For his compositions, Secret of Mana and Super Mario RPG served as major inspirations; Fox looked up to Yoko Shimomura's works in particular. Her song "Megalomania" for Live A Live was particularly inspiring for Fox. He originally intended to use a cover of the song in the Earthbound Halloween Hack, but he got tired of transcribing it and eventually decided to make a new song, which ended up being "Megalovania".[36]

Deltarune (2018-present)

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Initial draft

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The logo for Deltarune

While sick at home from university in 2011, Fox had a fever dream about an ending for a video game, after which he became obsessed with making that game and created the concept for Deltarune in 2012, composing music tracks for the game and creating some of its characters, though he abandoned development before creating a single room.[37] Fox moved on to Undertale, and utilized some of his 2012 compositions for the game. As its Kickstarter campaign was underway in 2013, Fox decided that his next game after finishing it "would be a mix of Undertale and that dream concept", which he felt he had to make a game on.[37]

Fox began working on Deltarune's demo, which became the game's first chapter, in 2014.[38] Between 2014 and 2015, prior to Undertale's release, Fox began creating concept art and sketches for the game's main characters.[39][40] Fox stated on Twitter in 2016 that he had been trying to learn 3D animation, without initially stating why; he later revealed that he had bought a Kinect to rotoscope a 3D-modeled Deltarune character, though quickly abandoned the idea. This character was later implemented in-game as the main antagonist in the 2025 release of Deltarune Chapter 3.[41] Throughout 2016, Fox also composed music tracks for Deltarune and wrote parts of its plot, such as aspects of Chapter 5, which released ten years later.[42][43]

"For the past 3 years I've been waking up in the middle of the night unable to go back to sleep because I've been thinking about the scenes that happen in the game. Even though so many details are still hazy, I really want to show you the things I've been thinking about. [...] If I don't show you what I'm thinking, I'll lose my mind".

Toby Fox on Twitter, 2018[44]

On October 30, 2018, Fox asked "those who completed Undertale" to view the official Undertale Twitter account.[45] The next day, Fox unveiled a "survey program" available through the deltarune.com website, which was revealed to be Deltarune's first chapter.[46][47] Fox subsequently explained on Twitter in early November that Deltarune was separate from Undertale's world, and that no work beyond the first chapter had been done. He additionally announced that he planned to release all future chapters of Deltarune as one paid package, not episodically, at an unknown time in the future.[38]

Though Fox continued writing dialogue and composing music, he disclosed in a February 2019 interview with Nintendo that Deltarune's progress was "effectively 0%", and its development team had not yet been formed.[37] For Undertale's fourth anniversary, Fox shared new songs from the game, further announcing progression in the game's design.[48] Fox had long suffered from chronic hand and wrist pain, though his symptoms became severe during Deltarune's development in early 2020, which he stated in a September 2020 post made it difficult for him to write and compose.[49][50]

Also in that post, Fox delivered a "substantial" development update, revealing that he had "completed readable outlines for every chapter in the game" earlier in the year, and projecting that Chapter 2 would have its content complete by the end of the year.[49][a][50][51] While his wrist condition eventually improved, Fox began using voice-to-text software to compensate for being unable to type for extended periods, having additionally hired more people to work on Deltarune; he later stated it "would not be possible to make or release by myself".[52]

Deviating from the initial release plan, Fox announced Chapter 2 on September 15, 2021, and released it for free two days later, since "the world has been really tough for everybody recently", referring to the struggles of the COVID-19 pandemic.[53][54] Fox said he planned to next release Chapters 3 through 5 as one paid product.[54] Starting in 2022, he began delivering updates on development through a free online newsletter.[55][56] In a 2023 issue, he announced that he would instead next release only Chapters 3 and 4, to reduce the time between releases.[57][58] Fox released those chapters, bundled in with the first two as a paid game, on June 4, 2025.[59][60][61] On June 24, 2026, Chapter 5 was released as a free update, and Fox projected the penultimate[52] Chapter 6 to release in 2027.[62]


Notes (Free Space)

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  1. PC Gamer incorrectly reports that Fox announced that Chapter 2 would release in 2020.

References (Free Space)

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  1. Turi, Tim (October 15, 2015). "GI Show – Yoshi's Woolly World, Star Wars: Battlefront, Undertale's Toby Fox". Game Informer. Archived from the original on August 7, 2019. Retrieved January 20, 2016.
  2. Hicks, Tyler (November 20, 2015). "Undertale Review". GameSpot. Retrieved January 21, 2016.{{cite web}}: CS1 maint: url-status (link)
  3. Travers, Sean (April 2022). "Nihilism, Violence, and Popular Culture: The Postmodern Psychopath in Toby Fox's Undertale". The Journal of Popular Culture. 55 (2): 411–431. doi:10.1111/jpcu.13120.
  4. Veale, Kevin (April 1, 2022). "'If anyone's going to ruin your night, it should be you': Responsibility and affective materiality in Undertale and Night in the Woods". Convergence. 28 (2): 451–467. doi:10.1177/13548565211014434. ISSN 1354-8565. Retrieved January 9, 2025.
  5. Fox, Toby. "Radiation's Halloween Hack". radiation.fobby.net. Retrieved 2026-07-03.{{cite web}}: CS1 maint: url-status (link)
  6. Nightingale, Ed (2021-03-22). "If you have Xbox Game Pass you need to play this awesome LGBT+ game right away". PinkNews. Retrieved 2026-09-01.
  7. Hart, Aimee (2021-09-20). "Deltarune will cost more than queer favourite Undertale". Gayming Magazine. Retrieved 2026-09-01.
  8. Yu, Jason (April 6, 2016). "An Examination of Leitmotifs and Their Use to Shape Narrative in UNDERTALE – Part 1 of 2". Gamasutra. UBM TechWeb. Retrieved April 21, 2016.{{cite web}}: CS1 maint: url-status (link)
  9. Yu, Jason (April 14, 2016). "An Examination of Leitmotifs and Their Use to Shape Narrative in UNDERTALE – Part 2 of 2". Gamasutra. UBM TechWeb. Retrieved April 21, 2016.{{cite web}}: CS1 maint: url-status (link)
  10. 1 2 3 Lee, Julia (13 November 2019). "Undertale creator Toby Fox's Pokémon Sword and Shield song sounds like a Homestuck fan tune". Polygon. Retrieved 15 September 2026.
  11. Oxford, Nadia (April 21, 2016). "Note Block Beat Box: Listening to 'Hopes and Dreams' from Undertale". USgamer. Gamer Network. Archived from the original on May 2, 2016. Retrieved April 22, 2016.
  12. Shepard, Kenneth (2025-07-11). "Professional Musicians Are Being Blown Away By This Deltarune Track". Kotaku. Retrieved 2026-09-01.
  13. Diaz, Ana (24 September 2021). "Deltarune Chapter 2 offers a brief reprieve in a world that's still healing". Polygon. Retrieved 15 September 2026.
  14. Yilmaz, Adam (25 September 2025). "Celebrate 10 Years of Undertale with the Definitive Piano Collections Box Set". RPGFan. Retrieved 15 September 2026.
  15. Zollner, Amelia (10 June 2022). "Undertale Creator Toby Fox Is Composing Music for Pokemon Scarlet and Violet". IGN. Retrieved 15 September 2026.
  16. 1 2 Diaz, Ana (October 17, 2020). "Make Love, Not War: Five Years Of 'Undertale'". NPR. Archived from the original on October 18, 2020. Retrieved September 18, 2026.
  17. Harte, Charles (2025-06-05). "Toby Fox Defends Limited Language Options In Undertale And Deltarune: 'I Want It To Match My Vision'". Game Informer. Retrieved 2026-09-17.
  18. Cite error: The named reference :4 was invoked but never defined (see the help page).
  19. 1 2 Zotomayor, Carlos "Zoto" (2025-05-22). "Toby Fox makes a purposefully low-quality video showcasing new Deltarune character "Shadow Guy"". AUTOMATON WEST. Retrieved 2026-09-17.
  20. 1 2 3 Glennon, Jen (2026-02-20). "Why is Undertale creator Toby Fox tweeting about Toy Story 5?". Polygon.com. Retrieved 2026-09-17.
  21. places, Joshua Wolens Legendary creators pop up in the strangest (2022-09-15). "Toby Fox wrote a fanfic to explain why Undertale's Sans is the 'ultimate Tumblr sexyman'". PC Gamer. Retrieved 2026-09-17.
  22. Doolan, Liam (October 1, 2022). "Random: You Can (Kind Of) Thank Toby Fox For Sakurai's English YouTube Channel". Nintendo Life. Archived from the original on November 27, 2025. Retrieved November 29, 2025.
  23. Walker, Ian (September 4, 2019). "Undertale's Sans Joins Smash Bros. As A Mii Fighter Costume". Kotaku. Archived from the original on September 8, 2019. Retrieved September 4, 2019.
  24. Lee, Julia (September 4, 2019). "Sans from Undertale joins Smash Bros. Ultimate as a Mii Fighter costume". Polygon. Archived from the original on November 26, 2025. Retrieved November 29, 2025.
  25. 1 2 Davi (August 16, 2017). "初見プレイは驚きの連続。本日発売となった「UNDERTALE」のプレイレポートをToby Fox氏のメールインタビューと共にお届け" [My first playthrough was full of surprises. We present a playthrough report on "UNDERTALE", which was released today, along with an email interview with Toby Fox]. 4Gamer.net (in Japanese). Archived from the original on November 14, 2025. Retrieved August 28, 2026.
  26. 1 2 Ishimoto, Shuji (December 20, 2015). "「東方」と「MOTHER」と「真・女神転生」の"カクテル"、2D-RPG『Undertale』開発者Tobyfoxインタビュー" [An Interview with Toby Fox, Developer of the 2D RPG "Undertale": A Cocktail of Touhou, "MOTHER", and "Shin Megami Tensei"]. AUTOMATON MEDIA. Archived from the original on August 24, 2026. Retrieved August 30, 2026.
  27. 1 2 3 Famitsu staff 2020, p. 89
  28. Grassl, Zion (8 May 2022). The MOTHER We Share - Our EarthBound Story. Nintendo Life. Event occurs at 37:53 via YouTube.
  29. Reynolds, Ollie (June 13, 2022). "Random: Undertale Creator Wanted To Help Shigesato Itoi Make Mother 4". Nintendo Life. Archived from the original on November 30, 2025. Retrieved August 30, 2026.
  30. Couture, Joel (October 26, 2015). "How Undertale makes you think hard before killing monsters". Game Developer. Archived from the original on August 24, 2026. Retrieved August 30, 2026.
  31. Zotomayor, Carlos (22 September 2025). "Undertale boss theme was heavily inspired by Persona 4, creator Toby Fox reveals". AUTOMATON WEST. Retrieved 12 September 2026.
  32. Bogos, Steven (June 25, 2013). "Undertale Dev: "Every Monster Should Feel Like an Individual"". The Escapist. Archived from the original on June 19, 2021. Retrieved January 20, 2016.
  33. Okumura, Kisuko; Koyama, Taisuke (October 19, 2018). "『UNDERTALE』トビー・フォックス×『東方』ZUN×Onion Games木村祥朗鼎談" ["Undertale" Toby Fox × "Touhou" ZUN × "Onion Games" Yoshiteru Kimura Roundtable Discussion]. Denfaminico Gamer (in Japanese). Archived from the original on May 4, 2021. Retrieved August 28, 2026.
  34. 1 2 Soejima; Boku (September 8, 2018). "「Hello! インディー」第9回 『UNDERTALE』の開発者トビーさんにインタビュー(前編)" ["Hello! Indie" Episode 10: Interview with Toby-san, creator of "UNDERTALE" (Part 1)]. Indie World (in Japanese). Translated by Switch News. Nintendo. Retrieved September 12, 2026.{{cite web}}: CS1 maint: url-status (link)
  35. Bennett, David (22 October 2015). "Behind the humor of Toby Fox's Undertale". Kill Screen. Retrieved 12 September 2026.
  36. 1 2 Fox, Toby; Shimomura, Yoko (May 12, 2023). "LIVE A LIVE: a conversation between Yoko Shimomura and Toby Fox - part 1". Square Enix. Archived from the original on August 19, 2026. Retrieved August 28, 2026.
  37. 1 2 3 4 Soejima; Boku (February 14, 2019). "『DELTARUNE Chapter 1』が2/28に配信決定" ["DELTARUNE Chapter 1" Set for Release on February 28]. Indie World (in Japanese). Nintendo. Archived from the original on December 19, 2025. Retrieved August 28, 2026.
  38. 1 2 Khan, Imran (November 2, 2018). "Undertale Creator Opens Up About Deltarune, Which Is A Long Way Off". Game Informer. Archived from the original on January 17, 2026. Retrieved September 2, 2026.
  39. Zotomayor, Carlos "Zoto" (April 28, 2025). "Toby Fox reveals early Deltarune character sketches from 2015". AUTOMATON WEST. Archived from the original on August 5, 2026. Retrieved September 2, 2026.
  40. Zotomayor, Carlos "Zoto" (June 30, 2025). "Toby Fox reveals early Deltarune concepts that show how much of the game was already conceived 10 years ago". AUTOMATON WEST. Archived from the original on August 31, 2026. Retrieved September 2, 2026.
  41. Lewis, Catherine (June 19, 2025). "Toby Fox created a beloved Deltarune villain "a long time ago," and had to abandon many ideas like using an Xbox Kinect and making them dance using a Hatsune Miku animation program". GamesRadar+. Archived from the original on June 19, 2026. Retrieved September 2, 2026.
  42. Lada, Jenni (30 June 2023). "Toby Fox Offered Deltarune Chapter 3 Update". Siliconera. Retrieved 10 September 2026.
  43. Koselke, Anna (24 June 2026). "With Deltarune Chapter 5 upon us, Toby Fox says "enjoy this crazy thing I thought up 10 years ago" as the team moves on to the RPG's "next chapter"". GamesRadar+. Retrieved 10 September 2026.
  44. Chalk, Andy (2 November 2018). "Undertale creator answers questions about his mysterious new project". PC Gamer. Retrieved 2 September 2026.
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Works cited (Free Space)

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