Coelacanth: Lessons from Doom

How true. I love games where you have to move like that.

Not strictly true. Wolfenstein was already well-established and had many clones using its engine.

In 1993, the message Doom sent to the videogame world was something like “use cutting edge technology to make something dark, edgy and violent”.

Again, Wolf 3D did that before Doom.

Good article, mind you, but the lack of mention of Wolf 3D is a bit of a glaring factual omission.