Basically, this concept is taken from Resident Evil Remakes, where it has the same storyplot but with additional details and upgraded mechanics, graphics and visuals. If someone asks, the meaning of REMAKE here is using the same storyplot and architecture layouts. There are thousands of custom WADS, and possibly I don't know EVERY WAD which remakes classic Doom IWADS, but I suppose I know most of them.
Seeing how threads about Doom remakes or remasters appear from time to time, I decided to create a list of fan remakes. But I've played a lot of fan remakes done by other community members. Still, except my jokewads I never did a Doom 1/2 Remakes for real.
I'm a big fan of videogame remakes (no matter the franchise), and I do like doing them by myself (mostly based on Doom sourceports, eh).