My RP days started back in the 80's with the basic D&D Red, Green and Blue boxes. I've played Gamma World to Mekton to Palladium (various) and more. Much of my social RP ability was built playing MUSH and MUD games, the internet's first true MMO's. All text and all about social role play rather than dice or fights. Pathfinder is a mainstay these days, with a tendency to lean toward Monk, Fighter or Paladin style characters.