So there I was one day trotting along in my Elite Knight Set in Undead Parish to visit the blacksmith. I goto talk to him, and me been stupid with my 'habits', I press every button on my controller in a spasm, (xD) and nearly kill him with my +10 Great Scythe. Went to Oswald up the tower, and had to pay a whopping 180,000 souls to cleanse myself of Sin.
Is there any set amount of Sin you obtain from killing certain (friendly) NPC's? Modifiers?
Also, while I'm at it, I beat Quelaag and went to visit her sister, thinking that Eingyi was a normal enemy, I whacked him and he died… Will I get Sin for killing him? I don't want to pay another 180,000 because I killed Worm Boy who sells his useless (for my character) pyromancies…
Best Answer
There is separate sin for PvP and for PvE. While PvP sin is calculated in points and can not be absolved by Oswald, PvE sin has no calculation: You are either a sinner or you are not.
Every PvE sin committed will instantly make you a sinner and will require you to pay Oswald. The amount of souls you need to absolve your sins is determined by your level. For each level you need 500 souls, so at level 360 you need to pay 180000 souls.
According to wikidot, actions that result in PvE sin are:
Regarding Eingyi, I'm not sure if he is counted as an NPC or an egg carrier enemy, as according to his wikidot page, killing him doesn't break the covenant. However, if Oswald charges you again, you will have to pay the full amount again, or more if you leveled up since (although at that high a level the souls shouldn't be too hard to come by).
In any way, the different types of sin also have different penalties. The only penalty for PvE sin is that the angered NPC will attack you, and that you can be invaded in Dark Anor Londo after killing Gwynevere. You will not be added to the Book of the Guilty (like you would for getting PvP sin), so you can't be invaded by Darkmoon blades for having PvE sin.
Since you already killed Eingyi, there is no difference if you absolve or not, except for a clear conscience.