Beat Demon's Souls as Royalty class. Was Online the entire playthrough, so it was pretty much White and Pure White tendency.
I started a new character. Temple Knight, so I can't just cheese things with Soul Arrow and MP Regen early on. I do have some casts of heals to help early game, but it's still a bit more challenging due to having to melee. I'm planning to try for the platinum trophy in this run, so I'm going to be using duping to get the spells and equipment as well as following a guide to get the world/character tendency events, but I'm going to not exploit it for massive levels since I want to see how it plays out as a character that has to get close most of the time. Obviously this run will need to be offline most of the time to manipulate World Tendency, though I started online so I'd start one away from Pure White. Beat tutorial vanguard in this run, so I was able to see the death after and grab some more stuff. I already kind of screwed things up because I did the PWWT event in 1-1 after clearing it but forgot about the other one where the dragons are gone from the area at PWWT(well, I didn't, but after entering the Nexus after killing the one NPC in the execution ground, WT went down toward Black, so they were back). Should be able to get back to PWWT for world 1, but if not, I can just kill the red and blue dragon and be able to get the stuff.
Pure Black World Tendency sounds interesting, though it'll be a while before I can mess with it.