They are exactly like Apple in the incompatibility department. And this is why Ubisoft is absolute trash when it comes to enforcing their shit on their games. What Reddit dumbasses I’ve come across years ago have said that the “workaround” is to have them on same drive. But because of this fact, the game will not launch because uplay isn’t recognized on external drive. Because of the size of AC games, I could not them in internal drive. I’ve also had issues in the past with trying to play AC:Origins and AC:Odyssey on an external drive separate of internal drive where uplay and my Rainbow Six: Siege game is located. This is one of Ubisoft’s terrible problem forcing their uplay platform. I can log in just fine in uplay on my phone or computer but it doesn’t recognize email/password in-game, thus I can never log into Uplay services for AC4:BF. I’ve played the game before many many years ago. Assassin’s Creed, Black Flag and Ubisoft, and the Ubisoft logo are trademarks of Ubisoft Entertainment in the US and/or other countries.I’m also having trouble with this. One-time license fee for play on purchasing account’s designated, primary PS4™ system and other PS4 systems when signed in with purchasing account. This item is being licensed or sublicensed to you by Sony Computer Entertainment America and is subject to the Network Terms of Service and User Agreement, this item’s use restrictions and other applicable terms located at If you do not wish to accept all these terms, do not download this item. *Online multiplayer also requires a PlayStation®Plus subscription. Use of PSN and SEN account are subject to the Terms of Service and User Agreement and applicable privacy policy (see terms at /terms-of-service & /privacy-policy). Video output in Full HD 1080p requires 1080p native display. Activate your Uplay™ Passport, to get access to the full single player connected experience, all the multiplayer abilities and customization items without any restrictions and unlock an exclusive character: The Nightstalker.

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