What about videogames?
If the communist leaders had enough foresight, upon the success of Tetris, they might have wanted to forster a state-owned videogame industry.
Now, videogames are a product that relies heavily on fads, trends that are short-lived. Capitalism with multiple small companies in competition have proven the best environment to produce imaginative and compelling videogames. This is the accepted paradigm.
On the other hand, nowadays videogames are in the hands of big companies that try to predict those trends, or if that fails, enforce them by flooding the market with the product they want to make trendy. Also, console videogames after the 1983 crash were left mostly on the hands of japanese companies, that meddled heavily with the independent developers. This model also favoured a top-down approach.
A Soviet videogame company might create a cheap but smartly engineered console with propietary hardware (take that, communism!), or stick to the micro-PC market, and then evolve to the PC. I think that early on, the console approach would have worked better, even if it had to compete directly with the Japanese giants Nintendo and Sega. All bets would be off, if they manage to chain a few blockbuster videogames that create a captive market. They could even play on the Japanese scare in the US to try and claim their console market.