Vault 777, a vault with many dwellers at max level, millions of caps and Quantums, and a Mr. Handy assigned to every floor. Deathclaws cannot even make it past the first floor due to how tight security is in the vault. Good for those who want a good vault but do not feel the need to build their own in save editor. The best fighters are on the top floor where they can easily fight against deathclaws. Ridiculous amount of Stimpaks, Radaway, living quarters at max capacity.

Vault 000 is a survival mode vault with less rooms, people, and constant disasters. Keep in mind that vault 000 has been sectioned off to prevent fires and disasters from spreading through it, and filling it up with empty rooms is not a good idea unless you like killing off your dwellers.