Firaxis Games is a video game development company based in the United States, known for creating popular strategy games. Founded in 1996 by Sid Meier, Jeff Briggs, and Brian Reynolds, the studio gained fame for its innovative gameplay and engaging storytelling. The company is best known for the Civilization series, which allows players to build and manage their own civilizations throughout history. Additionally, Firaxis has developed other successful titles, such as XCOM, a tactical game that focuses on alien invasions and strategic combat.