What if you could build a quick chatbot in an afternoon? With Twine, you can! Twine is a free, open source program designed for creating interactive fiction and games. That means it’s built to make nonlinear, interactive stories, making it perfect for planning and writing chatbots and chat simulations. Rule-based chatbots (where users pick from available options rather than entering open-ended text) are similar to branching scenarios or decision trees, where each choice leads to the next. With Twine and a special story format called Trialogue, you can focus mostly on creating those decisions, options, and responses, spending just a little time on the look and feel.