Weeks? How long are the distances? I think that kind of food consumption is stupid and not even realistic. You can travel to next city without eating.
Well, maybe I should have been more descriptive, by towns I mean major towns, more like cities, which will be widely dispersed, in between those cities will be smaller towns. The game "world" is going to be the continental US, which is about 3,000,000 square miles.
Walking 20-30 miles in a day is not at all difficult, it just takes preparation (as in lunch and a bottle or two of water), time, and another hearty meal afterwards. In a post-apocalyptic environment this would be even easier because people would be used to walking rather than taking the SUV everywhere.
That's what I figured, walking 20-30 miles a day from New York City to the LA, California area (the general path one would take in my game) should take around 4-5 months.
If the apocalypse doesn't make all the bicycles rust, one can go those distances in a fraction of the time or go 2-3 times as far in the same time.
I thought of this too; I noticed that in almost all the post-apocalyptic settings, it seems that bikes have vanished, maybe because no one ever looks cool on a bike. I'm trying to figure out if it would be worth it to include bikes.