Tranquility Lane

 is a Fallout 3 quest. It is also an Xbox 360 and PC achievement.

Tranquility Lane is a virtual reality simulator housed in Vault 112. The Player Character must either enter a musical code in an the abandoned house to unlock the terminal and then complete the Chinese Invasion simulation to free James from his VR imprisonment at the hands of Stanislaus Braun OR he can complete the missions Braun gives him and make Timmy cry, break up marriages and eventually kill everyone in Tranquility Lane, which will result in bad karma.