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You will need version 4 or higher of `firefox` https://www.mozilla.org/firefox
to run Pencil as a Firefox Extension. Linux users will need version 4 or higher of either `firefox`, `iceweasel` or `xulrunner` https://developer.mozilla.org/en-US/docs/Mozilla/Projects/XULRunner,
or version 25 or higher of `palemoon` https://www.palemoon.org/.
The Windows installer and OS X archive has everything you need built-in. Windows, Linux, OS X & Firefox Packages are available for download from the Releases Page https://github.com/prikhi/pencil/releases.
You can also install the Firefox Add-on from the Mozilla Add-on Repository https://addons.mozilla.org/en-US/firefox/addon/pencil-prototyping/.
To install the OS X package, unzip the archive and copy the `Pencil.app` folder t

Squiffy alternatives

  • Inklewriter

  • Inklewriter is a free tool by inkle, designed to allow anyone to write and publish interactive stories. It’s perfect for writers who want to try out interactivity, but also for teachers and students looking to mix computer skills and creative writing.

    tags: writing-editor planner treemap story-writing visual-thinking

  • 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.

    tags: interactive-fiction scripting-language writing-editor

  • Dedalus

  • Dedalus - A system based on Javascript and HTML to generate and run Choose Your Own Adventure narrative

    tags: authoring game-development interactive-fiction text-adventure text-adventure-maker

  • Undum

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

    tags: game-development interactive-fiction story-writing text-adventure text-adventure-maker

  • ADRIFT

  • ADRIFT Developer is a Windows application that allows you to create complex interactive fiction games quickly and easily. It allows you to concentrate on the story by making everything else easy, such as having all options available in dropdown lists, rather than you having to spend a lot of time just trying to figure out how to code the game.

    tags: game-development interactive-fiction text-adventures

  • TADS

  • TADS 3 is a robust, modern programming environment specially designed for creating Interactive Fiction.

    tags: interactive-fiction