I read Perky Pat a few days ago and it doesn't make sense to me.
Summary from Internet (updated):
It's post apocalyptic earth, and martians are dropping food and supplies to the few remaining human settlements. Adults are obsessed with a game called Perky Pat, which seems to be a cross between playing barbies and the game of life. In The game, Perky Pat goes through ordinary pre apocalyptic life, and all the adults build elaborate dollhouses for perky pat, and her boyfriend Leonard. The adults learn of a game played in a different settlement called Connie Companion, which is much like Perky Pat, except Connie is older, and married. The adults playing Perky Pat find out about Connie (but don't know that she's older, or married), and decide to challenge the Connie settlement to a game of Perky vs. Connie, with the stakes being the doll.
The Perky Pat town sends 2 players to the neutral town, and there they are shocked to find out that Connie is older, married, and even pregnant. the Perky Pat team wins, and takes the Connie doll back to their town. Their town is shocked as well, and when the 2 players show them the connie doll, they are kicked out of town.
Is it a metaphor for something? IE Parents raising their kids.
Why were they kicked out of town?
What is the story behind it? What point was PKD trying to make?
Also, the Simpsons did an episode recently called Brick Like Me where Homer is playing Perky Patty's Princess Shop adventure game. I feel like it's an allusion to Perky Pat although it has not yet been identified yet on the main page there is some vague reference made to a PKD universe (but not the Perky Pat story).
Someone else asked the same question here.