Fabien's The Game Engine Black Book Doom is so good if you're interested in how how it was possible to do something like Doom on the hardware of the time. http

Fabien's The Game Engine Black Book Doom is so good if you're interested in how how it was possible to do something like Doom on the hardware of the time. https://fabiensanglard.net/gebbdoom/ https://fabiensanglard.net/gebbdoom/ He also wrote one for Wolfenstein which is good as well.