So this is the original one, and the expansion is the blue package. The original only allows 4 players, while with the expansion it allows 8.
You might think they put in different colours for the extra players.. but they don't.. that's the only thing I don't like about the game, but it doesn't make the game any worse, just a little confusing at time when the dealer has to separate the cards.
The 4 colour coded player cards that comes with this is red, yellow, green, and blue... and each colour has its own symbol, like a green wooden bucket. But in the expansion you just see a yellow wooden bucket to discern a different deck... it would have been easier to make the expansion purple, brown, or black at least, not the same 4 colours!!
Regardless, this game is REALLY fun and addicting. Very fast pace and engaging. It's good for all ages as long as you got a big round table.