XCOM 2: War of the Chosen is a strategy game that revitalized the original XCOM 2, which faced criticism for technical issues and gameplay frustrations. The game involves defending against extraterrestrial invaders in a turn-based tactical format, where players command a squad of soldiers and face the possibility of permadeath. The War of the Chosen expansion introduces new enemy types, allied factions, unique soldier classes, formidable bosses, and a variety of mission types, enhancing the gameplay experience. The game emphasizes player-driven storytelling, where decisions impact the narrative, and offers high replayability due to its tactical depth and evolving challenges.