Shadowbane

The Good
Best team and solo PVP game ever made. The lore created by Sam "Meridian" Johnson was so amazing in how it greatly encouraged conflict through disparate histories. To this day, no one knows how my elf druid was so powerful (Celee/Qualme on Mourning)

The Bad
The graphics were terrible in 2003, but they let us mass PVP with hundreds of people in view concurrently on our crappy computers.

The Bottom Line
Someone needs to be willing to waste millions to make a new version of this game because PVP today is just MOBA crap.