I play that game too!
Watch out for deathclaws..
I only got to 7 rooms... and never explored.How did you last so long? :(( (my jealously) :)
I don't play very often anymore, but when I do, I create silly challenges for myself, just to add to the excitement. For example, my goal is give all the women red hair and all the men black hair. I think this is pretty funny. I am also working to max out everyone's abilities in all areas. Sometimes I kick people out of my vault just so I can bring new people in. If you haven't kicked someone out, I suggest you do it at least once. The comments they make when they leave are sad, but kind of funny. I have to admit that the first time I did it, I felt sooo guilty.
Oh! And I currently have 57 rooms!