Thunder On the Mississippi depicts Maj. Gen. Ulysses S. Grant’s 1863 campaign to capture Vicksburg.
The game is designed by Joe Balkoski (the original GCACW series creator) and Chris Withers. The game map will adhere to the accuracy and high graphic standards of its predecessors, with map design executed by artist Charlie Kibler—whose work on the series dates to its creation in 1992.
Two new terrain features unique to the Vicksburg region are also introduced: loess hills and coastal bluffs. The Advanced Game rules cover situations specifically applicable to this unique campaign starting with an amphibious invasion, followed by sweeping cross-country movement ending in siege warfare.
Thunder On the Mississippi provides excellent gaming value, with 11 Basic Game scenarios and one Advanced Game campaign, ranging from 1-turn learning scenarios to the full 70-turn campaign game.
It contains:
GCACW Series Rules Booklet (24 pages, including illustrations, play examples, charts)
Thunder On the Mississippi Rules Booklet (about 56 pages, including scenarios, the Game as History, Gazetteer, etc.)
Two 22"x 32" full-color map sheets
Two 280-piece counter sheets and one 140-piece half counter sheet
One Terrain Effects Chart
Two full-color Force Displays
Two 4-page full-color Charts and Tables
Two 6-sided Dice
—description from the publisher, adapted