"The Witcher 3: Wild Hunt" is an action role-playing game developed by CD Projekt. Released in 2015, it is the third installment in "The Witcher" series, based on the book series by Andrzej Sapkowski. The main story follows Geralt of Rivia, a monster hunter (Witcher), as he searches for his adopted daughter, Ciri, who is pursued by the Wild Hunt, a group of otherworldly beings. The game is set in an open world and features a complex narrative with branching storylines.

**Plot Summary:**

**Prologue - White Orchard:**
The game begins with Geralt searching for his former lover and sorceress, Yennefer of Vengerberg. The two are trying to find Ciri, who is prophesied to play a pivotal role in the world's fate. The search takes them to the war-ravaged region of White Orchard, where they learn about Ciri's recent activities and the imminent threat of the Wild Hunt.

**Act 1 - Velen and Novigrad:**
Geralt's quest takes him to the war-torn region of Velen, where he seeks information about Ciri's whereabouts. Along the way, he encounters various factions, including the Nilfgaardian Empire and the rebel group known as the Temerian Partisans. The narrative explores the consequences of war, political intrigue, and the relationships between different races and factions.

The story also leads Geralt to the city of Novigrad, where he continues his search for Ciri. In Novigrad, he becomes embroiled in a conspiracy involving the Church of the Eternal Fire, sorcerers, and secret organizations. Geralt must navigate the complex web of allegiances and betrayals while seeking clues about Ciri's location.

**Act 2 - Skellige Isles:**
Geralt's journey takes him to the Skellige Isles, a group of rugged islands with a proud warrior culture. Here, he hopes to find Ciri, who was last seen in the company of a Skellige ruler. The narrative explores themes of family, honor, and the impact of war on the Skelligan people. Geralt uncovers more about Ciri's past and her connection to a powerful elven sage named Avallac'h.

**Act 3 - Kaer Morhen and The Battle of Kaer Morhen:**
The story builds towards a climactic confrontation at Kaer Morhen, the Witcher stronghold. Geralt, along with his fellow Witchers, sorceresses, and other allies, prepares to face the Wild Hunt in a battle that will determine Ciri's fate and the fate of the world. The narrative explores themes of sacrifice, friendship, and the consequences of choices made throughout the game.

**Act 4 - The Isle of Mists and Beyond:**
The narrative takes an emotional turn as Geralt faces difficult decisions and uncovers the true nature of the Wild Hunt's pursuit of Ciri. The Isle of Mists marks a turning point in the story, leading to a series of events that shape the ultimate outcome of the game. The choices made by the player throughout the narrative significantly influence the ending.

**Act 5 - The Final Confrontation:**
The story reaches its climax as Geralt confronts the Wild Hunt and faces the consequences of his actions. The resolution of the narrative is influenced by the player's choices, relationships with other characters, and the outcomes of key storylines. Multiple endings are possible, reflecting the various paths Geralt's journey can take.

**Themes:**
"The Witcher 3: Wild Hunt" explores themes of family, destiny, moral ambiguity, and the consequences of war. The narrative is characterized by its branching storylines, complex characters, and a morally gray world where choices have far-reaching implications. The game received widespread acclaim for its storytelling, character development, and the richness of its open-world environment.