[DrTung]

The article just briefly mentions it, but the game I remember most from my AppleII days was RobotWar https://en.wikipedia.org/wiki/RobotWar

We were a couple of guys (and one AppleII) staying up all night designing robots, I still remember the names of some of my robots.

Like M.U.L.E. it was a good multiplayer game way ahead of its time.