Quack is a Dialogue Tree System built to work with GameMaker Studio 2. It provides an online editor, and a GML extension. It is designed to work with a variety of dialogue systems such as Friendly Cosmonaut's Dialogue System
Quack is great for building visual novels in GameMaker or complex branching dialogue trees in RPG games in GameMaker.
Features:
Visit the Quack website for instructions**
End User Licence Agreement (EULA).