Xenoblade Chronicles 3[a] is a 2022 action role-playing game developed by Monolith Soft and published by Nintendo for the Nintendo Switch. Released on July 29, it is the fourth installment of the open-world Xenoblade Chronicles franchise, and the eighth main entry in the Xeno series. Xenoblade Chronicles 3 depicts the consequences of the worlds featured in Xenoblade Chronicles and Xenoblade Chronicles 2, and concludes the trilogy's overall narrative. The development team wanted to develop a story-driven game in the style of the first two entries in the series, while featuring content and combat gameplay from previous Xeno entries. The game was announced February 9th, 2022, and released July 29th the same year. Like the first two entries, the game was localized by Nintendo of Europe. In gameplay, the game is similar in story writing, but very different to previous entries in mechanics. The game takes place in Aionios, where two warring nations, Keves and Agnus, engage in perpetual war with soldiers with ten-year lifespans. The story follows Noah and his two childhood friends from Keves, and Mio and her two fellow servicemen from Agnus, who all gain a mysterious power and decide to cooperate to find safety. Through this journey, they uncover the mystery behind this perpetual war and the nature of their world.