Deltarune is a story‑driven RPG created by Toby Fox, set in a mysterious world connected to — but distinct from — Undertale. You play as Kris, who is pulled into the Dark World alongside Susie, where they meet Ralsei and embark on a journey to restore balance. The game blends humor, emotional storytelling, and strategic combat with a unique “ACT” system that lets you resolve battles peacefully or aggressively.
Explore the Dark World, solve puzzles, battle enemies, and uncover the truth behind the mysterious prophecy. Your choices influence dialogue, relationships, and certain outcomes — though the game often challenges your expectations. Progress through each chapter to reveal more of the overarching story.
Developer: Toby Fox
Version: Chapter 1–2 Release
Released: 2018 (Chapter 1), 2021 (Chapter 2)