I started this, and maybe wrongly 'cause english isn't my native language,
but this is how i understood it:
"You may not charge a fee for the game itself" but "You may charge a
reasonable copying fee for this archive"
You can only sell this game independently of its value, as a basic copying
service you provide, so "a reasonable" copying fee" is what is expected.
In other words, you can't sell these two games for whatever price you feel
like. The "reasonable" makes these two games
nonfree.
I hadn't thought of the free engine + nonfree Non-functional Data issue. But
you know, this sounds absurd to me because... WITHOUT "NON-FUNCTIONAL" DATA
THERE IS NO GAME!
The graphics and sounds are also what make the game what it is. You cannot
compare them with say... desktop wallpapers and sounds!
