https://www.playstation.com/en-us/games/playlink-ps4/

Your Phone is the Controller. Your Friends are the Competition.

Look out for brand new PlayLink games in 2018! From quick-fire quizzes to immersive multiplayer experiences, PlayLink titles are all about games that everyone can enjoy. No need for multiple DUALSHOCK 4 wireless controllers…you smartphone IS the controller!
Pop a game into your PS4 system, download the Companion App, pick up your smartphones, gather around your TV and prepare for a different experience!

Source: Playstation YouTube
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