2PlayerTron.rkt is a 2 player version of the game. AutoTron.rkt has 2 computer players play against each other. Just run it and watch them fight it out. The required PLT file has been attached for your convenience.
newgrounds/Racket-Tron
This is a version of Tron in Racket that I wrote for the Honors Fundamentals of Computer Science 2 course back in the Spring of 2011.
Racket