I know what Stallman says. Are you saying that there is no software in games?
Of course there is software in there and I'm sure Stallman would say that the
software aspect of games should be free too. Go ask him if you doubt this if
you want.
I say this because Stallman's made clear for all these years that all
software must be free. I very much doubt he's going to start saying "Well,
except that software over there - That's OK to be proprietary."
Beyond the software aspect of games (like moving into audio and such), the
argument that they don't need to be free by pointing to someone that doesn't
believe in Free Culture, as Stallman does not, has no weight with me because
I fundamentally disagree with Stallman. Even if one accepts that there should
be a distinction between "practical" and "non-practical" works (I don't), one
can never know what uses someone will find to be "practical" with something.