CD Projekt RED has released GWENT: Rogue Mage for PC via Steam, iOS via the App Store, and Android via Google Play. The game is currently sold on Steam at a price of 49.99 TL.
The description of the game is as follows:
Hundreds of years before Geralt and the other Witchers roamed the great continent, the world was exposed to an infinite number of monsters. Humanity has resorted to violence to survive. The young and ambitious sorcerer Alzur and his friend Lily decided to create a live weapon to completely eliminate the monster threat. For this, he embarked on a dangerous adventure.
GWENT: Rogue Mage is the first indie and single-player expansion of GWENT: The Witcher Card Game. The game combines deck building and strategy elements with GWENT card battles.
Steam page