And, unlike machines in the West, every single machine that was produced during Soviet-era Russia had to align with Marxist ideology.

What does that mean, exactly?

Well, to put it simply: it means no Pac-Man. It means no fantasies. It means presenting work as physical labor, promoting Communist patriotism, and glorifying habits of mind that were appropriate to Marxist thinking. Fantasy and role-playing games featuring treasure-hunting, princesses, and invented creatures had no home in the USSR.