Sid Meier's Antietam! 1999, the year Sid Meier’s Antietam! It is the sequel of Sid Meier's Gettysburg! Beta Patch (version 2.0) 930.00 kB (not available on Firaxis site) 4 08-28-2000 Antietam! Based on Gettysburg's award-winning real-time tactical battle system, Sid Meier's Antietam puts you on a historically detailed, 3-D battlefield commanding animated Union or Confederate troops, as you relive the excitement, drama, and action of America's bloodiest day. As its forebear did, Antietam! Something every fan should have. Sid Meier's Civil War Collection is a compilation released by Firaxis Games in 2000 consisting of Sid Meier's Gettysburg and Sid Meier's Antietam with the South Mountain expansion.
Sid Meier's Antietam! is a real-time tactics computer game designed by Sid Meier the co-founder of Firaxis Games, then was released in 1998 by Electronic Arts.