The document discusses the history and evolution of the first-person shooter (FPS) genre from its earliest beginnings in the 1970s to modern times. It outlines several key developments and influential games: Wolfenstein 3D (1992) established the template for the genre; Doom (1993) reinvented FPS games; Quake (1996) further advanced 3D graphics and popularized online multiplayer; Half-Life (1998) also reinvented the genre and emphasized narrative; more recent influential FPS titles include Call of Duty 4: Modern Warfare (2007) and Bioshock (2007). The genre has grown to become one of the most popular in gaming due to these seminal titles.