Three Kingdom Heroes is a free massively-multiplayer strategy game. It takes only 3 minutes to learn, and is extremely fun!
The Three Kingdoms were Wei (魏), Shu (蜀), and Wu (吳). To further distinguish these states from other historical Chinese states of the same name, historians add a relevant character: Wei is also known as Cao Wei (曹魏), Shu is also known as Shu Han (蜀漢), and Wu is also known as Dong Wu or Eastern Wu (東吳). The term "Three Kingdoms" itself is something of a mistranslation, since each state was eventually headed not by kings, but by an emperor who claimed legitimate succession from the Han Dynasty.