Campaign running since 1985, set in 13th Century Japan with the feel of the chanbara/samurai movies like "Yojimbo" and "Seven Samurai", stressing characterization and historical context within alternate fantasy setting. Extensive "house rules" extending and elaborating the FGU edition rulebooks, and log of the last 3 game years (since 1996), are available on website [http://bushido-gempeiji.wikispaces.com/]. Game location rotates between Lansing and Detroit Metro area. Not for "power gamers": oldest PC reached 6th only after 25 years of play. Average level is 3rd-4th. Characters are involved in political and social situations that often require quick thinking. Not a "hack & slash" style. Combat often does not occur in a session at all. Characters have committed ritual suicide to atone for errors/failures/conflicts of interest. Any type of character is permitted, but this is a heavily formal and honor bound, consensus driven society, so "evil/dishonorable" characters have a hard time of it. For instance, Ninjas have to operate undercover, "out of class" without their gadgets. See the website for the current situation.
Started playing RPGs in 1976, under Greyhawk rules several times a week in college. Played most published game systems into the early 1980's, but liked Bushido (with modifications) best for it's flexibility since it was originally published in 1979. The core 3 people of this campaign have been playing Bushido together since 1981.
IMHO The greatest contribution of Gary Gygax and Dave Arneson was not inventing the genre of RPGs or D&D itself, but publicly stating the revolutionary concept that it was OK for a group of gamers to consensually change the published rules to suit the style of play they preferred. Prior to that point, "rules lawyers" were all about how to interpret the published rule. Afterwords it became all about how to make the rule (or system) better. THAT's what sparked the RPG industry.