^
I agree and disagree with this. The Archdemon is presented as being evil (it's the being controlling the Darkspawn) and it's the true antagonist of the game. The demons in the game are presented as evil and you fight them on many occasions.

I agree that companions aren't your typical knights in shining armor as some have dark pasts but you can try to build a group of good people just as you can build a group of bad people but even the "bad" people have their own codes and morals and one might argue that they aren't "bad" after all. Some of the things Sten says can be called evil but he ultimately wants to destroy the Archdemon and more or less cares about that only and doesn't care about the little things in the way. One could compare him to Renegade Shepard from Mass Effect who doesn't care about anything else other than stopping The Reapers and anyone who gets in his way can die. Morrigan on the other hand...yeah, she's evil.

But yes, Dragon Age: Origins is called a "dark fantasy" for a reason by the developers. It's not your happy little game with a happy ending where the world is saved forever. There's a feeling of victory at the end but you ultimately know that there's still chaos in the world and that the Darkspawn will return. Your victory is just a hint of good in a dark time.

I read Alrik's thoughts on Origins and I know what he's talking about, I remember in one of my favorite quests (the one with the almost blind Templar - Ser Otto), you go throughout a orphanage fighting demons, seeing children's ghosts running about and seeing all sorts of demonic and weird stuff. In the end, the Templar is killed but you defeat the demon that was causing the evil in the house. So it's a victory but at the same time, a good man dies.