Sword Art Online: Game Director's Edition has never been released for PC, so it has no PC system requirements. It came out on PlayStation 4. Released in 2015.
Running Sword Art Online: Game Director's Edition on a computer
There is no emulator for PlayStation 4 that this site will point you at.
Games of the same series that run on PC
Sword Art Online: The Game
SWORD ART ONLINE: Alicization Lycoris
SWORD ART ONLINE: Fatal Bullet
Sword Art Online VR
SWORD ART ONLINE: Hollow Realization
Sword Art Online Re: Hollow Fragment
Where Sword Art Online: Game Director's Edition can be played
Platforms: PlayStation 4.
