Click to Speak
Download v. 3.0
Instructions
Installation instructions for the two applications are here.
A beginner's guide to using the editor is here.
A sample dialogue tree is included with the editor and player. To download these individually, see Installing Click To Speak#Optional
The list of known issues with the current version is here.
About Click to Speak
Click to Speak is a tool for building and running a dialogue-based game. It comes in two parts: the editor, TextEditor3, and the game, ClickToSpeak. TextEditor3 allows you to construct a dialogue tree of textual lines and audio files, and ClickToSpeak runs the game based on the dialogue tree.
The game works as follows: There is a PC and an NPC. The player is presented with a push button. While the NPC is talking, the player may push the button at any time to interrupt the NPC with a response. Depending on when the button is pushed, the PC will respond with different dialogue to what the NPC just said.
For example, suppose the NPC's first line starts with "Hello". If the button is pressed at this point, the PC might simply respond with "Hi! How are you?" If the NPC is not interrupted and gets to continue talking, he/she might say, "Hello. And how is Fluffy doing?", leading the PC to respond with a comment on Fluffy's health. If the NPC still isn't interrupted, the full line might turn out to be, "Hello. And how is Fluffy doing? Nice cat, Fluffy. Too bad if something were to happen to her..." Now the PC's next line would become a reaction to the threat. And so on.
If you're interested, there's also some background on the game idea in this writeup of Marleigh's talk at GDC Online: http://www.gamespot.com/news/6280781.html