The twilight threes is a large-scale online game of history based on trinationals, with unity as its ultimate goal, unlike the three-country online game that exists on the market – one that allows players to experience the three-country taste, and one that enters the three-country era as a true historical figure, rather than the mmorpg, which enters a three-country context as a mere fictional occupation. The game was measured on 29 june 2006. Many historical stories can be seen in the troubled three countries. This reduces the fictional element of mmorpg, so that players can also feel the sense of reading three novels while playing games. Although it's a web game, players can choose their favorite role to go back to history to settle this mess and complete the tri-national business, which makes the game more interesting and better focused. Players in all three countries can play games with heroes who have actually existed in history. Each of them has a different character, and players can choose to play the game with someone who's great in three countries or who's smart. The choice of historical figures of their liking as role players is a major feature of the system. The national war system of the three troubled countries is a very strategic one between the three. The impact of the attack has been significant with the appearance of the attack on the city and the formation and tactics of each regiment in the three countries. Successful gamers who attack the city not only receive additional hunting areas, but also benefit from money, such as taxes, taxes, etc., to make themselves richer. Moreover, every player could increase its wealth and efficiency during that period。