When growing up in Warszawa, I played some great and complex fantasy/science fiction games. Just as with Stanisław Lem I figured they were part the unique Polish grass-roots creativity (they were pure paper, i.e no expensive molded plastic, and sold cheaply; in comparison all the cool Western stuff like the fancy ZX Spectrum was sold in special "dollar shops" that only took USD)
The Polish original -- http://i.imgur.com/w7Q9aw1.jpg (a great game of space trading with a supply/demand system, space combat and a unique feature where you could predict future events and act upon them). Many years later I found all those cheap games were translations of American cheap games, published in the "Ares" magazine: http://i.imgur.com/islQ8gW.png
Nintendo went to great lengths to acquire publishing rights for this game. Tetris basically established the whole handheld gaming market, it was the Game Boy's killer app.
I guess since the 60s or so, Soviets just started to copy all the CPU designs and electronics from the West. Apparently it included children's games.