Doom is the legendary first-person shooter created by Id Software and released for DOS in 1993. It was Id Software’s follow-up to their genre-defining Wolfenstein 3D. This was the first game to popularize multiplayer for this genre.
Hexen: Beyond Heretic is a first-person shooter developed by Raven Software and released in 1995 as a sequel to Heretic, published one year before. It is the second chapter of the Serpent Riders series.
Shadow Warrior is an action shooter game developed by 3D Realms Entertainment and published by GT Interactive Software in 1997 for DOS and Mac. In 2013 it made its way to Windows and was also formatted for iPhone and iPad.
Raptor: Call of The Shadows is a vertical-scroller shoot 'em up developed by Cygnus Studios, published by Apogee Software in 1994. It was originally published for DOS, but has since been ported to Windows, iOS, Linux, and Mac OS.
Scourge of Armagon is the first official mission pack for Quake. It was developed by Developed by Hipnotic Interactive and released in 1997. It contains 17 new single-player levels...
Spear of Destiny is a first-person shooter, prequel to Wolfenstein 3D. Developed by idSoftware and published in 1992 for DOS by FormGen Corporation, it uses the same engine and has the same gameplay but with several additions.