Grand Theft Auto 6 leak reveals over 90 gameplay videos - Polygon

Over 90 gameplay videos of an unfinished, in-development version of GTA 6 have been released on GTAForums, with Rockstar sources confirming to journalist Jason Schreier that the videos are genuine.

GTA 6: Gameplay Videos Reportedly Leak - IGN

Take-Two confirms GTA VI leak, says game development unaffected

Rockstar Reveals First GTA 6 Trailer! Release Soon?

Historic GTA 6 Leak Shows the Game Is Set in Vice City, Gameplay Looks Awesome - autoevolution

Over 90 'GTA 6' Gameplay Videos & Screenshots Have Leaked Online - 9GAG

GTA 6' suffers massive leak of 90 gameplay videos

Episode 523: We're 10 Years Old! — Married to the Games

Genuinely hope the houses we get in GTA 6 don't feature locked rooms : r/ GTA6

Why GTA VI Leaks Suggest a Development Stage Well Beyond Pre-Alpha : r/GTA6

Didn't see anyone talk about this. The guy guessed the trailer a few hours before the leak. He also says he has more information on the game. There is also a MW3

Development of Grand Theft Auto V - Wikipedia

Leaked GTA Trilogy remaster gameplay footage looks reassuringly good