How do you turn on survival mode in fallout shelter?

Related questions

1. Can all rooms be merged in fallout shelter?
2. How do you heal a Mr handy in fallout shelter?
3. How many caps does Mr Handy collect?
4. How do you make your dwellers give birth?
5. How do you survive fallout shelter?
6. Can Mr Handy regenerate health?
7. Does Mr Handy heal fallout shelter?
8. How do I keep my fallout shelter dwellers happy?
9. What do bottle and Cappy do in fallout shelter?
10. Where is my Mr handy in fallout shelter?

Tags

1. #there
2. #checkbox
3. #above
4. #where
5. #vault
6. #survival
7. #vaults
8. #number
9. #normal
10. #switch
11. #select
12. #start