As a fellow Swede, I think that's slightly disingenuous. Sure, companies can't officially force you to work overtime, but for sure there are many instances where people are encouraged to bring work home or pull some extra hours to make a deadline – especially at smaller companies.
Yeah sure, but it's far from the work environment in the states or even in other countries in europe. Require people to do some extra hours sometimes is often part of every contract but I have never been required to do so.
Once I had a boss that wanted me to work overtime "unofficially" but I refused. Needless to say, I left that place pretty quickly.
I don't work in the game industry, but I know some people who do and they never work overtime.
I think some may do it anyway by free will or by social pressure, but these people are probably pretty rare. In my country (Sweden) we don't really have a culture where companies pressure people into working more in general so those who do often meet a lot of social uproar and protests.