Finland is Western-aligned, and Central and Eastern Europe are under a sort of forced neutrality. How would that affect the technological exchange?
EDIT: I'm changing it to a neutral Finland, as it makes more sense.
Neutral Finland is the way to go if you want to use OTL relations with Finland as a reference for how Western technology and practice influenced Soviet development.
For some background information, see the article by Sari Autio-Sarasmo, "Soviet scientific-technical cooperation with Finland and West Germany" (p. 66-82) about the Finno-Soviet relations in
this book, and the one by Enn Tyugu, "Computing and Computer Science in the Soviet Baltic region" (p.29-38) on the special case of the Baltic ASSRs as a Soviet border area
here. Also,
this book in its entirety might give you some ideas.
To see some of the potential results from deeper Finno-Soviet cooperation in the 80s, compare for example the
MikroMikko computers built in Finland for the local market and the East German
Robotron computers that were actually exported to the USSR in some numbers. Had the Soviets bought MikroMikkos or similar systems from Finland, they probably would have received also Finnish software and games as a side effect of the bargain, and that might have also been an interesting influence on Soviet game design.
I also stumbled upon a nice article on Soviet cybernetics
here. Incidentally, one of the strong proponents of cybernetics and administrators of the field in the Soviet system was
Aksel I. Berg, a Finnish-born engineer and admiral who had also been in a key role in developing Soviet radar systems during WWII.
Now, I understand I have not really said anything about how Soviet games might look like in this post. But I think that carefully charting the background of the problem at hand can well lead to some good finds and new ideas at some point, so I hope these few leads give you some insight.
(BTW, I am not attempting to say that Finns or Estonians developed all Soviet electronics.

But it is also good to remember that the dominant readings of Soviet history are often Russocentric and thus generally overlook, deliberately or not, the input of the smaller allies and partners, subject nationalities and border areas.)