Beautiful Free Animated Desktop Wallpaper: “Witchers Game Swords”. The Witcher (Polish: Wiedźmin [ˈvʲjɛ̇ʥ̑mʲĩn]) is an action role-playing game developed by CD Projekt Red and published by Atari, based on the novel series of The Witcher by Polish author Andrzej Sapkowski. The story takes place in a medieval fantasy world and follows Geralt of Rivia, one of a few traveling monster hunters who have supernatural powers, known as Witchers.