And it reminds me of https://en.wikipedia.org/wiki/Decwar https://en.wikipedia.org/wiki/Decwar (which was based on ... which was based on ...), which was played

And it reminds me of https://en.wikipedia.org/wiki/Decwar https://en.wikipedia.org/wiki/Decwar (which was based on ... which was based on ...), which was played on a timesharing system. It was fairly well known back then, so I wouldn't be surprised if Alto Trek was inspired by it. I played DECwar once, at night, because only then all the terminals were free, and the operator could run this game.