The internals of AoE II are quite interesting, especially when it comes to how the terrain is rendered. There is an epic thread here [1] where it's discussed a bit and one of the original developers (Matt Prichard alias MattP) chimes in and talks a bit about AoE II's development.<p>Trying to clone AoE II seems like a pretty cool and challenging project, and actually if I was going to write a game with 2D isometric graphics, I might steal some tricks from AoE.<p>[1] <a href="http://aok.heavengames.com/cgi-bin/aokcgi/display.cgi?action=ct&f=3,40110,0,30" rel="nofollow">http://aok.heavengames.com/cgi-bin/aokcgi/display.cgi?action...</a>