[quote=@Hazel]
Potentially interested! What mechanics are you thinking of using?
[/quote]
I'm not going to use an existing game system but will instead make this up entirely off the top of my head.  

I'm thinking that the underlying story can be similar to any one of my favorite movies or television shows: "I am Legend", "The Walking Dead", "The Book of Eli", "World War Z" (the movie; not familiar with the other formats), "The Postman", "Waterworld", etc.

PCs will start out with little and will need to accumulate resources while creating a secure living situation.  They can remain in one place and venture farther out into their community; or they can be on the road, trying to get from Point A to Point B.

The trials and tribulations they face will depend upon the basic storyline with which we go.