released in 2000 to popular reviews from critics, and another direct sequel, Syphon Filter 3 was released in 2001 to mixed reviews upon release. A fourth title, Syphon Filter: The Omega Strain, was released in 2004 for Playstation 2 to mixed reviews. Two titles were released for the PlayStation Portable in 2006 and 2007; Syphon Filter: Dark Mirror and Syphon Filter: Logan's Shadow, respectively. A port to the PlayStation 2 for Logan's Shadow was released in North America in 2010. Those were met with mixed to positive reviews from critics. Notes References External links 1999 video games Android (operating system) games Bioterrorism in fiction PlayStation (console) games PlayStation Network games Single-player video games Stealth video games Syphon Filter Third-person shooters Video games about terrorism Video games about viral outbreaks Video games developed in the United States Video games set in 1999 Video games set in Costa Rica Video games set in Kazakhstan Video games set in Nepal Video games set in New York City Video games set in Ukraine Video games set in Washington, D.C.