Survival Mode (Fallout Shelter)

Survival Mode is an optional gameplay setting

Overview
Survival Mode is enabled by checking the corresponding box above the vault number selection when creating a new vault. It cannot be enabled or disabled from an existing vault. When selecting the Survival Mode button while creating a Vault, the game will display a message advising the player not to choose this difficulty unless they are experienced.

Features

 * Resources drain at a faster rate.
 * Incidents do more damage.
 * Vault Dwellers can't be revived, whether in the Vault, in the Wasteland, or on quests.
 * Objectives are more demanding, but give better rewards.
 * Quests are more challenging.
 * Deathclaws start appearing at 35+ dwellers instead of 60+.