Undum is described as 'game framework for building a sophisticated form of hypertext interactive fiction' and is an app in the Development category. There are more than 10 alternatives to Undum for a variety of platforms, including Windows, the Web, Linux, Self-Hosted solutions and Mac. The best alternative is Twine, which is both free and Open Source. Other great apps like Undum are Chronicler (Free, Open Source), ChoiceScript (Free, Open Source), Ink by Inkle (Free, Open Source) and Inform (Free).
- 16 alternatives