[danaris]

I think that a duopoly, or other very small number of meaningful participants in a market, is fundamentally much less healthy and much less beneficial to customers than a larger number of smaller competitors, whether or not they have explicitly colluded to partition the market (as, for instance, in the ISP market).

[Godel_unicode]

Since you didn’t answer my question we can assume that the answer is “yes they do meaningfully compete” which is good because that’s obviously the case.

There are on the order of 10 video game companies with over a billion usd in revenue. There are 3 distinct console manufacturers (4 if you count the steam deck, 5 if you include PCs). Then there’s the mobile gaming market, which has all the big players plus a bunch of others.

Duopoly’s and small markets goodness or badness is irrelevant in this situation.