Thanks, that makes 3.
What 3 are you counting???
There's loads! Steam is full of non-AAA content, just go look at the front page!!!
Because you were to lazy to do this, here's what showed up on the Steam front page for me:
Non AAA, independent studios of around 20 people:
Medieval Engineers / Space Engineers
Face of Mankind (MMO)
Beasts of Prey
SPORE™ Galactic Adventures
That's a majority of the content on Steam being from small studios, and many more tiny "indie" games than AAA games.