The only legitimate way to play for free is through the or specific editions with free initial content:
While you may find "free download" links for Final Fantasy XV Windows Edition on unofficial sites, these are generally pirated versions that carry security risks like malware. FINAL FANTASY XV WINDOWS EDITION Free Download ...
: Offers the Windows Edition with Xbox Live integration. Green Man Gaming : Often provides official Steam keys. System Requirements (Minimum) FINAL FANTASY XV POCKET EDITION - Microsoft Store The only legitimate way to play for free
For the full experience, you can purchase the game from authorized retailers. It frequently goes on sale (sometimes up to 60% off): : The primary platform for the Windows Edition. Where to Buy Officially
: A stylized version of the game where Chapter 1 is free to download and play, with subsequent chapters available for purchase. Where to Buy Officially