you can also get the game for the Xbox too, I wonder if PS4 gamers can play XBox gamers. In this day and ages the network traffic would be the same, and when writing the games you just tend to build for the platform its going on, so you write the same code. Build once for Ps4 hardware and build again for Xbox. Saves a lot of development time, and the same GFX could be used in both, although some tweaking may be needed.