WASD + mouse aim in FPS. Wolf3d, Doom1 and Blakestone used the arrow keys, spacebar and Ctrl back in the day. The arrows were turn, not strafe too.
I reckon it was some friends of mine in the 90s in Box Hill, Melbourne, Victoria who were the first to use WASD/mouse aim. Share house above a shop at the end of a tram line.
Salting the earth is bad for the environment? Well I never.