Final Fantasy X is a role-playing video game developed and published by Square as the tenth main entry in the Final Fantasy series. Originally released in 2001 for PlayStation 2, the game was re-released as Final Fantasy X/X-2 HD Remaster for PlayStation 3 and PlayStation Vita in 2013, for PlayStation 4 in 2015, Microsoft Windows in 2016, and for Nintendo Switch and Xbox One in 2019. The game marks the Final Fantasy series transition from entirely pre-rendered backdrops to fully three-dimensional areas (though some areas were still pre-rendered), and is also the first in the series to feature voice acting. Final Fantasy X replaces the Active Time Battle (ATB) system with the "Conditional Turn-Based Battle" (CTB) system, and uses a new leveling system called the "Sphere Grid".
Set in the fantasy world of Spira, a setting influenced by the South Pacific, Thailand and Japan, the game's story revolves around a group of adventurers and their quest to defeat a rampaging monster known as Sin. The player character is Tidus, a star athlete in the fictional sport of blitzball, who finds himself in Spira after Sin destroyed his home city of Zanarkand. Shortly after arriving to Spira, Tidus becomes a guardian to summoner Yuna to destroy Sin upon learning its true identity is that of his missing father, Jecht.