In the "not-free" category, I'll add City of Heroes/City of Villains Two different games that can be played as one. Easy to solo or team. It's based on comic book super heroes or super villains. Semi heavy requirements to play it, though it is possible over dial up. There is a PVP side to it, but it's really hard to be solo in that. Cost to play is US$15 per month for either or both games. 11 Severs and 8 or 12 (one game/both games) characters per server.
I'm Not Evil.
An evil person would do the things that pop into my head.