Shih-huang-ti

The Shi-Huang-Ti was a Chinese submarine that crashed in San Francisco during the Great War. The descendants of the crew settled in the ruins of the city and became known as the Shi. The remains of this vessel were used to help build the Steel Palace and the ship's on-board supercomputer was established as the Emperor.

Appearances
The Shi-Huang-Ti was originally meant to appear in Fallout 2, but was eventually cut from the final version of the game, and is only mentioned by name by the Shi Emperor.

Behind the scenes
"This submarine was supposed to play a larger role in Fallout 2, but it was axed because the game was too big as it was. Basically, it was another stage to "get the tanker ready" quest - basically, there was this old Chinese submarine buried beneath in the waters of San Francisco, and if it detected any American vessel coming anywhere near it, its automated defense system would fire its missiles at the vessel and DESTROY it. So the intention was for you to find some deactivation code to disarm it before you could take the tanker safely to the Enclave."

- Chris Avellone, Fallout Bible 6


 * The name of the submarine, Shi-Huang-Ti, is an alternative Romanized spelling of "Shǐ Huángdì" (始皇帝), the first emperor of a unified China and founder of the Qin dynasty.
 * The name of the submarine is misspelled as "Shih-huang-ti" [sic].