The unannounced game that Atlus and Vanillaware teased back in 2019 is at the end of its development cycle. This news comes from an interview about GrimGrimoire OnceMore that Nintenderos had with George Kamitani of Vanillaware. The trailer for this title first appeared as an extra feature in 13 Sentinels: Aegis Rim Prologue. In an interview with Siliconera, the title also came up. [Thanks, Gematsu and Nintenderos!]
During our interview with Vanillaware about GrimGrimoire OnceMore, Kamitami mentioned that the development team “may or may not be working on a similar, yet totally different project” from Grand Knights History. Of course, this is not a direct confirmation from Vanillaware as to the identity of the unannounced game. Yoshio Nishimura also mentioned “a major project within the company” that made it difficult to start development on GrimGrimoire OnceMore.
You can watch the trailer for the unannounced Vanillaware game here:
The trailer shows a fantasy world. Who appears to be the protagonist is standing near an army on horseback. After we see him, the game shows a coat of arms with Vanillaware’s name on it. Though the trailer appeared at the end of 13 Sentinels: Aegis Rim Prologue, that does not mean this unannounced title will be the same genre or have the same game flow.
Vanillaware has almost finished development on its unannounced title and more information on it will come out some time in the future. Atlus will publish it.