Dynasty Tactics (Sangokushi Senki, 三国志戦記) is a series of strategy games for the Sony Playstation 2. The titles are set in the same time-perio as several of Koei's other series, including the action-oriented Dynasty Warriors series and the strategy Romance of the Three Kingdoms series. Dynasty Tactics allows players to play as Liu Bei, Cao Cao and Sun Ce, while Dynasty Tactics 2 adds Lü Bu as an unlockable playable character.