Short answers, pulled from the story.
Silent Hill 3 was developed by Team Silent, a production group within Konami Computer Entertainment Tokyo, and published by Konami. It was first released for PlayStation 2 in Europe on the 23rd of May 2003, in Japan on the 3rd of July 2003, and in North America on the 5th of August 2003.
Silent Hill 3 follows Heather Mason, a 17-year-old who is targeted by a cult that seeks to use her as the vessel for a malevolent deity. She discovers she is the reincarnation of Alessa from the first Silent Hill game, and that a woman named Claudia murdered her father Harry to drive her toward the cult's goal. Heather ultimately defeats the newborn god after a confrontation at the cult's church in Silent Hill.
The final version of Silent Hill 3 was built from scratch in fewer than nine months, between September 2002 and May 2003. An earlier version planned as a rail shooter consumed roughly a year of work beginning in September 2001 before being almost entirely scrapped.
The soundtrack was composed by Akira Yamaoka. It was the first Silent Hill game to use vocals prominently, with most vocal tracks performed by Mary Elizabeth McGlynn, credited as Melissa Williamson. Joe Romersa sang the chant on "Prayer" and the vocals on the ending theme, "Hometown."
Silent Hill 3 sold over 300,000 copies by November 2003. In Japan it topped sales charts upon release, with 58,000 copies sold in the first three days.
Yes. Silent Hill: Revelation 3D, directed by M. J. Bassett, was released on the 26th of October 2012 by Open Road Films. Adelaide Clemens starred as Heather, with Sean Bean as Harry Mason, Carrie-Anne Moss as Claudia Wolf, Kit Harington as Vincent Cooper, and Malcolm McDowell as Leonard Wolf.