Yes, this is possible depending on the platform(s) you are playing on. If you wish to play using multiple characters simultaneously, please reference the information below and purchase the necessary amount of retail products and registration codes for the characters.

■Playing 3 characters simultaneously on the Windows version only
- One(1) SQUARE ENIX account
- Three(3) Windows version retail products
*Up to 8 registration codes may be registered to a single SQUARE ENIX account.

■Playing 1 character on the Windows version and 1 character on the PlayStation®4 version simultaneously
- One(1) SQUARE ENIX account
- One(1) Windows version retail product
- One(1) PlayStation®4 version retail product
*Up to 8 registration codes may be registered to a single SQUARE ENIX account.
*Please be sure to register your Windows and PlayStation®4 version registration codes to separate service accounts. (If you register the codes on the same service account, you will not be able to play them simultaneously)

■Playing 3 characters simultaneously on the PlayStation®4 version only
It is not possible to play simultaneously on multiple characters.

If you wish to play the game simultaneously with family members using multiple accounts, please see the article below.
https://support.na.square-enix.com/faqarticle.php?id=5382&la=1&kid=67224&ret=faq

In addition, if you intend on purchasing the PlayStation®5 or PlayStation®4 version of the game, please refer to the article below ahead of time.
https://support.na.square-enix.com/faqarticle.php?id=5382&la=1&kid=67223&ret=faq