The Encounter Tester
The Encounter Tester is a tool for testing out the behavior of Encounters, the interstitial scenes that play in between conversations. The best way to understand it is to play one yourself: you can try out a sample Encounter online here.
You can download the Encounter Tester here. This program requires the Java Runtime Environment to be installed on your computer. Download it here.
Also, we're looking for volunteer authors! If you might be interested in writing Encounters (or you just want a detailed explanation of the program), read the Encounter Tester user manual and Encounter style guide.