It’s been reported that Grand Theft Auto 6 could be the most expensive video game ever made. READ MORE: ‘Saros’ review: ballsy successor to modern cult classic ‘Returnal’ The follow-up to 2013’s Grand Theft Auto 5 has been in full development since 2019. Last year, a report claimed Rockstar had spent between $200million and $300million working on hyper-realistic water and earlier this year, a former developer said he spent 39 months making broken glass look more realistic in the game. A new report from Business Insider (via IGN ) says that industry analysts have estimated that Rockstar Games has already spent between $1billion and $1.5billion on creating Grand Theft Auto 6. Strauss Zelnick, boss of publishers Take-Two, didn’t comment on specifics but said making the game “was expensive”.…