The Witcher 3: Wild Hunt concludes the story of the witcher Geralt of Rivia, the series' protagonist, whose story to date has been covered in the previous versions. Continuing from The Witcher 2, the ones who sought to use Geralt are now gone. Geralt seeks to embark on a new and personal mission, whilst the world order itself is coming to a change. Geralt's new mission comes in dark times as the mysterious and otherworldly army known as the Wild Hunt invades the Northern Kingdoms, leaving only blood soaked earth and fiery ruin in its wake; and it seems the Witcher is the key to stopping their cataclysmic rampage.

The Witcher 3: Wild Hunt (Polish: Wied?min 3: Dziki Gon) is an action role-playing video game set in an open world environment, developed by Polish video game developer CD Projekt RED. It was released for Microsoft Windows, PlayStation 4, and Xbox One on 19 May 2015.The game is the third in the series, preceded by The Witcher and The Witcher 2: Assassins of Kings, which are based on the series of fantasy novels of the same title by the Polish author Andrzej Sapkowski, but all take place after them.

CD Projekt RED has said that it is not necessary to have played the previous games to fully enjoy Wild Hunt. While similar to the previousWitcher games, Wild Hunt has improved on several aspects from past games. Combat revolves around an action role-playing game system combined with the use of magic. The fighting system has been completely revamped. Wild Hunt introduces some new mechanics, such as witcher-sense, combat on horseback, and at sea, swimming underwater, and using a crossbow. Additionally, Geralt can now jump, climb, and vault over smaller obstacles. The climbing mechanics have been described as "not exactly" like Assassin's Creed, but more "similar to what we have in Uncharted". Item creation and potion brewing still remain as in previous games, but have been modified from The Witcher 2. There are 10 witcher signs, 5 original ones, each having 1 alternative form.