https://www.pcgamer.com/grand-theft-auto-5-has-sold-over-95-million-copies/

Grand Theft Auto 5 has a thriving mod scene, an ever-impressive performance subculture and an Online component that continues to generate new features—and, clearly, revenue—like nobody's business. During its Q4 earnings report, publisher Take-Two Interactive revealed the open world crime sim has shifted 95 million copies across all platforms since launch in 2013. 

After detailing net profits of over $450 million in the last quarter, Take-Two addressed GTA 5's haul. As reported by RockstarIntel, the 95 million figure means Grand Theft Auto 5 has sold around five million copies since the publisher's last earnings call.