Stranger Than Heaven director: GTA 6-scale games may force studios to consider AIRGG's director says games the size of GTA 6 might not get made without generative AI

Ryu Ga Gotoku Studio executive director Masayoshi Yokoyama told Dexerto at Summer Game Fest 2026 that the scale of games like GTA 6 could eventually force studios to adopt generative AI. He stressed that RGG did not use generative AI "at all" for Stranger Than Heaven, its upcoming historic yakuza title, but acknowledged the conversation is changing. The studio did use deceased celebrities Tupac and Sugawara Bunta in posthumous roles, a decision Yokoyama defended by noting that using a deceased person's likeness in Japanese media is culturally normalized and that Tupac's family approved his appearance.

RGG Studio's Masayoshi Yokoyama sat down with Dexerto at Summer Game Fest and said games as massive as GTA 6 could eventually push studios toward generative AI — but made clear Stranger Than Heaven didn't use it "at all." He also addressed the Tupac posthumous casting backlash, saying his family approved the role and that using deceased celebrities' likenesses is standard in Japanese media.