I hope this hasn't been posted yet, but I saw it and thought it was fascinating.
http://www.15kop.ru/en/
Most of the site in Russian so it's just pretty pictures to me, but hopefully someone can translate and give us more info. I did discover by poking around that you can apparently play an emulated version of the first game that comes up when you look at the collection, though, the yellow game with the large face on it. It reminds me of the Atari 2600 title Street Racer.