Vault Rats is a unique short TC (total conversion) mod for Fallout 2 released on July 29, 2007. It includes 12 different endings, a lot of parody and bunch of small details which keep the atmosphere on the right level.
These are sources of the Vault Rats mod scripts. Feel free to study them, learn about how certain features have been implemented into the Vault Rats mod, copy & paste parts of the code if you need them, do whatever you want with them. It's all free, however it would be nice for me to be credited in your work (if any of this helped you in a way). All scripts have been written from scratch using Jargo's FSE v1.5a (Fallout Script Editor).