Description from BoardgameNews.com:
In Seven Card Samurai, 2-8 players try to protect the rice in their villages from bandits and ninjas while simultaneously building a strong collection of samurai. Each turn, a player draws two cards, then plays two – raiding an opponent’s rice supply with a bandit, placing samurai and ronin in your village to provide protection, using a ninja to attack another player’s hand or enable your bandit to bypass samurai, calling on a shogun to use its special powers.
When a player collects seven samurai in only one or two colors – whether on the table or combined with the cards in hand – the round ends, with that player scoring 7-20 points depending on the color distribution of his samurai. Each player also scores one point for each rice marker he holds, and the player with the most points after five rounds wins.