If you played the older version you played this one. Baiscally they took out many of the problems like sailing east(still can go slow but is no impossible like before) and finding treasure and stuff and improved them and made everything bigger.
It is almost the same game with better graphics. With that said it still rocks and is a lot of fun to play.
It is weird because there are only about 3 different fencing animations when boarding a boat so I have seen them all countless times and fencing isn't that difficult but it is still fun. The same came be said for the rest of the game.
If you played and loved/liked the original then you should really like this and if you haven't and your looking for a light game that is playable multiple times then you should pick it up. Kind of like a longer arcade experince, you are doing the same things over and over but you want to get a better score. Plus it is a lot of fun.
Also this is the PC version I am talking about not the Xbox.
As far as a rating I would say "Buy It" definatly since it is at $30.