Though the creator is "very eager" to showcase the new chapters, the timing still depends on "localization and console porting."
While some members of the development team have started working on later chapters, Chapter 3 remains the focus for now.
Fox has collaborated with Game Freak on a number of projects in the past, and recently confirmed that he contributed to the music of the upcoming Pokemon games as well.
Deltarune's first two chapters are currently available, while developer Toby Fox revealed in September last year that its final three chapters would be developed and released together.
"It's hard both for creators and fans to go a long time without a release," developer Toby Fox acknowledges following Chapter 2's launch.
Save data transfer from the first chapter is supported, though creator Toby Fox says players who "generally remember what happened" will be fine.
PlatinumGames' critically acclaimed action RPG will be available until November 1st while other titles are playable indefinitely.
And it's available on Xbox Game Pass.
No word on when it'll be out though.
Toby Fox's partnership with Game Freak continues.
The first chapter of the eccentric RPG will be free, just like its PC release.
Toby Fox has "something" to show fans, asking them to return in 24 hours.
Toby Fox's award-winning role-playing game will be hitting the platform later today.
Physical Collector's Edition announced for $64.
Undertale may be coming to Nintendo's quirky console.