Fallout is a game set in a post nuclear holocaust. The setting is as follows:
Your parents and many other people entered an underground vault to escape a nuclear war. Everything has been going well, until the water purification controller fails, and there is no way to repair it, build a new one, or bypass it. You have 5 months to find another water chip in the outside world.
You start with a map that has the location of another vault marked. However, just going to the other vault does not produce a water chip. There are many subquests that you must complete.
I would like to start with a list of links to other Fallout sites.
Corrections to other walkthroughs. I use the dual Fallout/Fallout 2 which is version 1.1