Fallout: New California adds an all new story around a new player character, an adopted resident of Vault 18, embarking on a journey through the wastelands of the New California Republic's Cajon Pass. An unofficial prequel to New Vegas, FPB adds hours of new gameplay and a fully voiced stand alone campaign.
Finally done after ages of work, the wasteland is ready to be played. In the first Installment, this area will be explorable, but won't contain a story. It is basically just a giant arcade sandbox that keeps getting harder until you die. Quests and voice acting will come in the 2nd Installment.