Matthew Chastney is a composer and sound designer based in the UK. Matthew's video game composing credits include Cornerstone: The Song of Tyrim, Heroine's Quest: The Herald of Ragnarok and Lost in Nazca. Sound design credits include Gabriel Knight: Sins of the Fathers – 20th Anniversary Edition and Cognition: An Erica Reed Thriller. Matthew's work in video games has been recognised with industry awards such as the 2012 Game Audio Network Guild Award for Student/Apprentice Sound Design, and the 2013 AGS Award for Best Music.

Outside of video games, Matthew's music has been licensed for television, commercials and other media worldwide for networks including HBO, BBC, FOX and Sky.