Since time immemorial, people have been modding the likes of Doom and Doom 2, creating their own levels, tweaking the visuals, or turning the games into something else entirely. As one of the best and most influential FPS series of the 90s, the original entry has more than stood the test of time and continues to inspire other studios to this day. Much of this comes down to the fact that there are so many mods for it and many more being developed.