Dungeons & Dragons is working on it's 5th Edition, but that's not true, as it only started counting with AD&D. So it is really around 7th or 8th Edition. Pathfinder could easily be considered yet another edition.
Traveller is working on it's 5th (?)
RuneQuest is on it's 6th, although Legend is certainly a divergent path.
Tunnels & Trolls in on it's 7.5 Edition (and 8th is apparently in the works)
Castles and Crusades has "Printings". I think the Player's Handbook is now on it's fifth.
World of Darkness is on it's... second, third? someone, anyone?
Hero is on it's 6th.
GURPs is on it's 4th.
Savage Worlds is kinda on it's 2nd.
Rolemaster is on it's 3rd? Maybe
Warhammer Fantasy Role Play has gone through 3.
I'm sure I missed a few.
With the exception of WFRP, has any RPG gone through the extensive system changed that D&D has?
Money - Though I'm told to think otherwise, I don't believe that D&D is just a game of going out to a dungeon or other lair, killing everything and bringing back...
4 hours ago