Umm... to all of the people saying that it's not possible, I played FO3 without gaining a
single bit of negative karma. I didn't pickpocket, didn't steal, and didn't kill anyone that nets negative karma. Sure I had to kill beasts, Super Mutants, Raiders, and Talon Company. But I didn't kill anybody
just because I wanted to. What's so hard to grasp about that? The only thing that I will do differently this time is avoid battling those guys by using non-lethal methods (as the developers chose to insert them for this specific purpose) or just run away into a building.
YES it's a bit extreme to avoid killing people who are attacking you with intent to kill versus those who are innocent, but why not give it a shot to challenge yourself?
And if FO was
meant to be played violently, why did they add a Speech option at all? If I recall correctly, in FO1 (or FO2), you could beat the final boss through pure speech checks!
The only reason it has a heavy focus on weapons because it needs to connect with the mainstream crowd, and what does the mainstream crowd like? Shooting [censored] up.
Does not mean it's the only thing that matters in a fallout game.
Exactly.
EDIT: And yes, I reached level 30. You gain a lot of positive karma from [surprisingly] positive karma related quests! I didn't farm purified waters for homeless at all.