Empire

Empire is a 1977 turn-based wargame with simple rules. The game was conceived by Walter Bright starting in 1971, based on various war films and board games, notably Battle of Britain and Risk. The game was ported to many platforms in the 1970s and 1980s. Several commercial versions were also released such as Empire: Wargame of the Century, often adding basic graphics to the originally text-based user interface.