Deltarune Chapter 3 came out on June 5, 2025, as part of the combined Chapters 3 and 4 release. Some outlets noted the launch went live a few hours earlier in certain time zones, but the official release date was June 5, 2025.

Quick note

  • Chapter 3 was not released separately; it arrived together with Chapter 4.
  • The bundled release also included Chapters 1 and 2 in the paid package.

If you want, I can also give you the release timing by region.