Undum

Undum is a JavaScript framework for creating interactive, branching narratives, often referred to as choose-your-own-adventure stories. It is designed to simplify the process of building complex storytelling structures in a web browser. The core concept of Undum revolves around the idea of a story being composed of individual "passages" or "paragraphs" that can link to each other.

The framework handles the logic for displaying text, presenting choices to the reader, and navigating between different parts of the narrative based on those choices. Undum uses a simple markup language to define the structure of the story, including text content, links, and conditional logic. This allows authors to focus on writing the story rather than dealing with complex programming.

Key features of Undum include its ability to manage story state, such as variables that can change based on reader decisions, and its support for rich text formatting within passages. It is particularly well-suited for text-based games, interactive fiction, and educational content that requires a narrative component. The framework is open-source and has been used for various personal projects and interactive storytelling experiments.