
- BGG rank
- BGG #5,367
- BGG rating
- 6.5
Fort Sumter: The Secession Crisis, 1860-61
- 2 players
- 20–40 min
- Complexity 1.8/5
- 2018

Expansion for Altar of Freedom: Grand Tactical Battles in the American Civil War
2018
Rules assistance for A Formidable Invasion: The 1863 Gettysburg Campaign
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
A Formidable Invasion: The 1863 Gettysburg Campaign is an expansion for Altar of Freedom: Grand Tactical Battles in the American Civil War released in 2018 for 2–6 players and ages 14 and up. It was designed by Greg Wagman and its main mechanics are Simulation, Events, and Scenario / Mission / Campaign Game.
It is late June 1863. Lee's army--now larger than ever before--swarms into Maryland and threatens Pennsylvania. At this critical moment, General Hooker is suddenly replaced by the respected but yet untested George Gordon Meade. Can Meade discern Lee's true intentions and stop him? A Formidable Invasion is a free campaign supplement, allowing players to re-fight the pivotal weeks of the Gettysburg campaign. Players maneuver their divisions across a vast theater map with the potential to fight a series of interconnected battles. Our simple rules are only 10 pages, but still include logistics, supply, weather, variable map movement, asymmetrical victory conditions, and historical random events. —description from the publisher
A Formidable Invasion: The 1863 Gettysburg Campaign supports 2–6 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The catalogue lists A Formidable Invasion: The 1863 Gettysburg Campaign for ages 14 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
A Formidable Invasion: The 1863 Gettysburg Campaign belongs to these categories: Wargame, Miniatures, and Expansion for Base-game. Its main mechanics are Simulation, Events, and Scenario / Mission / Campaign Game. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The credited designers of A Formidable Invasion: The 1863 Gettysburg Campaign are: Greg Wagman. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists A Formidable Invasion: The 1863 Gettysburg Campaign as an expansion for Altar of Freedom: Grand Tactical Battles in the American Civil War. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Altar of Freedom: Grand Tactical Battles in the American Civil War to use it. Check that your edition of Altar of Freedom: Grand Tactical Battles in the American Civil War is compatible, as some expansions were revised between editions.