As of 2024/2025, Toby Fox is actively developing the next chapters. In his newsletters, he has confirmed:
Moreover, Deltarune's use of player choice serves to challenge traditional notions of narrative progression. Rather than following a set narrative arc, the game's story unfolds through a series of branching paths, each of which reflects the player's choices. This creates a sense of uncertainty and unpredictability, as players are never quite sure what will happen next. Deltarune
The soundtrack of Deltarune, composed by Toby Fox and Jimmy Liu, is a character in its own right. The game's score is a masterful blend of jazz, rock, and electronic elements, perfectly capturing the game's atmosphere and tone. From the haunting melodies of the game's early chapters to the frenetic battle themes, the music of Deltarune is an integral part of the player's experience. As of 2024/2025, Toby Fox is actively developing
Then, you plunged the knife into the earth, and the darkness began to roar. This creates a sense of uncertainty and unpredictability,
Unlike Undertale 's focus on "kill or spare," Deltarune posits that in the traditional sense. The narrative consistently steers key events to a fixed conclusion, but it explores the importance of how you travel through that fixed path. A mysterious voice (implied to be the player) controls Kris, who occasionally breaks the fourth wall by tearing out their own soul (the red heart) at the end of chapters.