What Could Have Been: Originally the game was going to use the GURPS system for character creation, and was entitled Vault 13: A GURPS Post-Nuclear Adventure. Disagreements with Steve Jackson led to the termination of Black Isle's GURPS license, so the developers cooked up the SPECIAL system for the game and changed the title to Fallout.
The original draft of the conclusion of the Junktown questline was rather morally grey, with Gizmo turning the town into a grade-A resort in which society flourished, although for a mainly selfish reason, and on the other hand having Killian become a Knight Templar who ends up ridding the town of crime once and for all, which also causes a slow depopulation of the place, as people would start to avoid it in fear of the overzealous sheriff. This was scrapped for the final release after the marketing department decided that the game had to "reward good and punish bad".
