Syphon Filter is a shooter video game released for the Sony PlayStation 1 in 1999. Developed by 989 Studios, it is part of the Syphon Filter series and is rated T for Teen. Players take on the role of protagonist Tomas Kalinksy as he leads a team of mercenaries in various missions. With its engaging gameplay and immersive storyline, Syphon Filter offers a thrilling experience for fans of the genre.