Pergamemnon: Antebellum, an expansion for the deck-building game Pergamemnon, adds two new nations to the game: the Germans and the Macedonians. In addition, the loser of a battle can now acquire one new skill, addressing the "problem" of a runaway leader that some players have experienced, while also strengthening the "weaker" nations.

Pergamemnon: Antebellum allows up to seven players to participate in the same game and comes packaged with PAX: Nocturnus, an expansion for the separate card game PAX.