Alright, so Quest is a text adventure game creater and player created by Alex Warren. It can be found here. The Quest Development Kit is the program usually used to create the game files. I haven't used either in some time, but for a while I was quite familiar with the software and created a tutorial to guide users through the basics to advanced features. As well, I've made available two unfinished games as demos for interested creaters. Legacy of Shadows is fairly standard. Reading Presented Gallivant was an attempt at a CRPG in Quest. Most features and framework save the actual battles were implemented, so it could be used as a base engine or demonstration of unusual applications of standard features.

QDK Tutorial
Legacy of Shadows game file
Reading Presented Gallivant game file, manual and designer documents