Twine

Twine is an open-source tool for telling interactive, nonlinear stories.

Free Open Source Mac OS X Windows Linux

Inform

Inform is a design system for interactive fiction based on natural language.

Free Mac OS X Windows Linux

ChoiceScript

ChoiceScript is a simple programming language for writing multiple-choice games (MCGs) like Choice of the Dragon. Writing games with ChoiceScript is easy and fun, even for authors with no programming experience.

Free Open Source Mac OS X Windows Linux Web Self-Hosted

Chronicler

Chronicler is an open source desktop application which allows users to create CYOA/MCG (choose your own adventure/multiple choice games) interactive fiction using a GUI not dissimilar to Twine (i.e. in the style of a flow chart).

Free Open Source Windows Linux

ADRIFT

ADRIFT Developer is a Windows application that allows you to create complex interactive fiction games quickly and easily.

Free Mac OS X Windows Linux Web

Quest

Quest lets you create sophisticated text-based games, without having to program. Make text adventures, role-playing games, training materials, simulations, or...

Free Windows

Chat Mapper

Chat Mapper is a tool for writing and testing nonlinear dialogue, especially for video games.

Freemium Windows

Squiffy

Squiffy is a tool for creating multiple choice interactive fiction. It's written entirely in JavaScript - the compiler uses Node.js and the games it generates run in...

Free Open Source Web Self-Hosted

Dedalus

Dedalus is an authoring system for generating Choose Your Own Adventure (CYOA) narrative.

Free Open Source Self-Hosted

Undum

Undum is a game framework for building a sophisticated form of hypertext interactive fiction.

Free Open Source Self-Hosted