I love the colors on that album. Very early-90s dungeon crawler gaming, or something, but with that cheesy racing-style skyline background. Wouldn't be surprised if it was CGI of its era, actually. Kinda like the back cover of that Nile demo that was clearly designed on an old PowerMac.
Festivals of Atonement
http://www.ebay.com/itm/Nile-Festiv...141250193080?pt=Music_CDs&hash=item20e32ae6b8
(can't find a better pic immediately, but the pixelated black-and-white design and friggin Chicago typeface is just so retro-badass)
EDIT: Apparently it's actually considered an EP and official release, but whatevs