Softcover version released in 1991, at the same time that Warhammer Fantasy Battles Third Edition and Warhammer 40,000 Rogue Trader were the latest releases in Games Workshop's main line of miniature wargames. This supplement supports both those systems. It provides rules for fortress design and conducting long-term sieges and final assaults.
144 page softcover
Last 4 pages are pull-out cardstock of counters for use in the game.