Vault City designer notes

The Vault City designer notes is holodisk in Fallout. It credits the developers of the game.

Location
The holodisk can only be acquired at a terminal in Vault 8 after defeating the inhabitants of the oil rig. The computer with the plugin and disk is the 'talking' one to the 'east' of level 3 of Vault City's vault, that gives the location of Vault 15. The computer described in the disk is actually the 'southernmost' one in the 'northwest', or "upper left" area.