According to lead director Hidetaka Miyazaki, before the start of the two-year development period,the studio had previously ruled out the following game to be a new installment in the King's Field series.Instead SCEJ producer Takeshi Kajii described the game as a "spiritual successor" to King's Field,where he stated "I am a fan of From Software, but naturally that also means there are parts of their games I'm not satisfied with, too," explaining the development choice as an opportunity to be more creative and potentially innovative, stating "If this was a new King's Field game, there would be areas we wouldn't be able to touch since they're part of the series; working together like this, we can try to make something really new."Besides King's Field, Kajii also mentioned fantasy-themed gamebooks such as Fighting Fantasy and Titan as inspiration for many location and character designs.The style of characters such as the "Adjudicator" boss took some influences from pagan folklore, yet rather than exactly deriving from other designs, the process involved "mixing a couple of images of primitive gods together" to create a "raw concept" with "an unusual and chaotic feel.