As MacRumors reports, Apple reasons these games display the Confederate flag in "offensive and mean-spirited ways".
Apple has removed seemingly all Civil War games from the App Store for displaying the Confederate Flag in "offensive and mean-spirited ways," our sister website TouchArcade has learned. Apple has sent a removal letter to affected developers to inform them that their app does not comply with Section 19.1 of the App Store Review Guidelines.
"19.1 Apps containing references or commentary about a religious, cultural or ethnic group that are defamatory, offensive, mean-spirited or likely to expose the targeted group to harm or violence will be rejected."
A sampling of the Civil War games removed from the App Store:
Ultimate General: Gettysburg AAA American Civil War Cannon Shooter Civil War: Hidden Mysteries Civil War The Battle Game Civil War Defense Civil War Battle Defense 1861 A Civil War Rebellion Civil War: 1862 Civil War: 1863