The history of Doom is more than just the tale of how John Romero and John Carmack came together to create a PC gaming phenomenon. The history of Doom is the history of id Software and the history of the FPS itself.
From the 1993 original to 2020’s Doom Eternal, each new Doom game developed by id Software has both reflected the culture of the studio at the time, and moved the needle of the FPS in some manner.