Deltarune is a role-playing video game created by Toby Fox, the developer behind the popular game Undertale. Released in chapters, it features a mix of exploration, puzzle-solving, and turn-based combat. Players control a character named Kris who, along with companions Susie and Ralsei, navigates a mysterious world filled with unique characters and challenges. The game is set in a parallel universe to Undertale and includes similar themes of friendship and choices. Players encounter various monsters and must make decisions that affect the story's outcome. Deltarune is praised for its engaging narrative, charming art style, and memorable soundtrack.