Mathfuric says:
I also agree that CE characters if played well can work within a group, as they are inherently selfish yes but well aware of their weaknesses and hence will use others to counter those perceived weaknesses.
I'd add that
any well played character can work xD because, you know, you also have the lawful goody problem running around...
What you need is good role-players to pull it off. In fact, you need good players to pull off any good campaign. Most D&D players I know personally are in for the fun, bashing some goblin heads, get some loot and make the occasional inappropriate joke. They are not really there for the the deep, dramatic RP stuff.
RPing is, incidentally, a bigger thing in PbP than life table (as far as my experience goes), so this might be the place to pull off and evil campaign.
Psybermagi says:
I disagree that chaotic evil has to be solo. There are many reasons a psychotic sociopath might want to be in a group and actually agree to work with others, survival and personal gain being high on the list.
You can even say a psychotic sociopath is beyond the alignment axes. For me, alignment should only applies for characters who are of sound of mind. You know, like they do for laws. Pathological cases are disruptive to any alignment. A murder hobo doesn't follow any alignment. It's not killing for personal gain, because you know, in any respectable society (particularly an evil one), he is going to be get rid of pretty quickly. And worse, sociopaths might follow their own little set of rules, so they could very well be considered lawful.
Hell, I would even argue just for the sake of it that
samurai were chaotic evil.. I mean, he did sneak into the enemy camp (chaotic by not following the "rules of war") and then proceeds to massacre the drunken enemies (not good for sure, since as they were "defenseless") which, by the way, were basically on their way to end a civil war (totally evil to continue the war for self gain). Want to play CE, play a samurai. Even ninja were a way more lawful bunch really.