Doom 3 took the series down a more horror route when it released in 2004, and its slow-paced mechanics is something one fan wanted to move away from, as a mod makes the game play more like Doom Eternal, or even one of the classic entries. Developer id Software has made its mark on first-person shooting, pretty much single-handedly creating the blueprint for the genre in the early days, with the studio still able to make a significant impact on FPS gaming to this day.