Amazon created or published some very good mobile games for the fire ecosystem way back in like 2013 or earlier. They also had a prime benefit called "actually free" games for fire that effectively gave you a unlimited currency in some free to play games, as well as free access to some paid games.

Both of those initiatives were quite nice and improved my view of the prime program. I do wonder what an alternate time line looks like where they had focused on mobile gaming and creating a subscription gaming experience rather than first party stuff.