How does grand theft auto online differ from the original san andreas setting?

Grand Theft Auto: San Andreas (2004) is a single-player open-world game featuring three cities—Los Santos, San Fierro, and Las Venturas—within the fictional San Andreas state. The game follows protagonist Carl Johnson through a narrative spanning the 1990s, emphasizing a fixed story with specific missions and character development. Grand Theft Auto Online, released in 2013 as a standalone multiplayer expansion, operates on the same game engine and map but shifts to a persistent online world with no central narrative. It introduces dynamic multiplayer features, regular content updates, character customization, cooperative missions, and competitive modes absent from the original. While both share the same geographic setting, San Andreas Online lacks the linear story structure and instead focuses on player-driven activities, social interaction, and evolving online gameplay mechanics.