Also, have a look at J.M. Graetz's account of how the game came into being (here in a comprehensively redacted version): https://www.masswerk.at/spacewar/Space

Also, have a look at J.M. Graetz's account of how the game came into being (here in a comprehensively redacted version): https://www.masswerk.at/spacewar/SpacewarOrigin.html https://www.masswerk.at/spacewar/SpacewarOrigin.html