I used to play with the TK Tetris from the Cookbook.
chromatic, IIRC, mentioned he was working on a perl based rogue. That would be very cool.
I've used Perl for keeping track of various gaming stats from before. I used to be addicted to crack, I mean Magic and had a flat database.
I'm currently converting a C++ program for generating random Champions characters. (Poor time management on my end is thwarting me.)