Yes sir @acidyo ! Gwent The Witcher Card Game is the separate game. You can also play that game in The Witcher 3 but in the different rules, mechanics, design, etc. I really love that game and sometimes i playing on my mobile phone :)
In the near future exactly 30.06 we will get new expansion "Master Mirror" to this game. Im so excited. New cards, new decks, etc. You can read more about it if you want here and watch the trailer as well. https://www.playgwent.com/en/news/35329/gwents-fifth-expansion-master-mirror-coming-soon
BTW thanks for visited my channel. :)