Risk is a commercial strategic board game, produced by Parker Brothers (now a division of Hasbro). It was invented by French film director Albert Lamorisse and originally released in 1957, as La Conquête du Monde (The Conquest of the World), in France.

Risk is a turn-based game for two to six players and is played on a board depicting a stylized Napoleonic-era political map of the Earth, divided into forty-two territories, which are grouped into six continents. Players control armies with which they attempt to capture territories from other players. The goal of the game is "world domination," to control all the territories—or "conquer the world"—through the elimination of the other players. Using area movement, Risk ignores limitations such as the vast size of the world and the logistics of long campaigns.

The official rulebook gives three basic strategic tips for the classic rules.

  • First, players should control entire continents to get the bonus reinforcement armies.
  • Second, players should watch their borders for buildups of armies that could imply an upcoming attack.
  • Third, players should build up armies on their own borders for better defense.