They were not slowed by a reported technical malfunction. In a September 2025 retrospective, Deltarune creator Toby Fox said the team faced creative hurdles while designing Chapter 3’s boards and events in Noelle’s house. He said development became smoother after the team cleared those hurdles and expanded.
What did Toby Fox say made Chapters 3 and 4 difficult?
Fox described the obstacles as creative design problems, not a specific engineering defect. In his Fall 2025 newsletter, he wrote: “With Chapter 3&4, there were some creative ‘hurdles’ which made developing parts of the game difficult. How to do the Boards of Chapter 3, how to design the events in Noelle’s house, etc.”
Those examples point to decisions about how the chapters would play and unfold. Fox did not identify a problem with the game’s code, engine, consoles, or hardware, so describing the delay as caused by a technical issue would go beyond his account.
He added: “Once we got past those hurdles and expanded the team, everything went much more smoothly.” That links the improvement to resolving design challenges and adding team capacity; Fox did not quantify either factor.
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Why did “technical issues” become an imprecise description?
The phrase suggests a malfunction or engineering bottleneck. Fox’s explanation instead concerns creative work: determining the structure of Chapter 3’s boards and designing events in Chapter 4’s Noelle-house sequence. The headline-style shorthand misses that distinction, and the available account does not support a more specific technical diagnosis.
How did the development timeline change?
- September 2022: Fox said the team was working on Chapters 3, 4, and 5, but most progress had been on Chapters 3 and 4. He also noted that additional people were helping and that setup work had taken time but was in place, in an official September 2022 update.
- June 2025: Fox announced the release of Chapters 1–4 for PC, Mac, Nintendo Switch, PlayStation 4, and PlayStation 5 in the release newsletter.
- September 2025: Fox looked back on the Chapter 3–4 hurdles and shared a Chapter 5 progress update. He described a production sequence involving localization, porting, testing, bug fixing, and release, and said he did not expect Chapter 5 in the first half of 2026.
- June 24, 2026: The official DELTARUNE Steam announcement feed records Chapter 5’s release. A later update said the team would return to Chapter 6 development after addressing reported issues.
Are Chapters 3 and 4 available now?
Yes. Chapters 3 and 4 were included in the June 2025 Chapters 1–4 release; they are not upcoming chapters. The September 2025 newsletter confirms they had come out, and the release announcement lists PC, Mac, Switch, PS4, and PS5.
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What is Toby Fox working on after Chapter 5?
The latest status established by the official sources cited here is that the Steam feed reported a return to Chapter 6 development after Chapter 5 fixes. That describes the announced focus in those updates, not a claim about progress beyond them.
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