kai2: I've heard a lot of people talking about this game lately and it's sparked my interest. After looking into it a bit seems it will unfortunately never make its way to GOG...
... so...
... is Age of Empires III worth playing?
I'm sure a few here have played it and have thoughts (hopefully).
Many thanks in advance.
Yes. I'd get a retail copy through eBay - they're not too hard to get hold of.
It's different from AOE I and II; more story focussed. A lot of people didn't like the change in style (plus, graphically everything is pretty zoomed in), but I found the game itself to be good fun - as long as you don't expect a straight sequel to the first two AOE games.
The setting (the Colonisation of America) is also good fun, touching on the Age of Piracy, Colonisation and I think post revolution as well. Slightly less historical than its forebears (unless you consider the fountain of youth to be a real thing!) I'm not sure about the expansion packs - still need to play through those, but one adds in Indians and the other an Asian campaign, so they're probably worth a look too.