JAWA is an online tool which makes it possible to create, free, easily and quickly, point'n'click type investigation / adventure games, playable directly in the browser or in the form of mobile apps (smartphones & tablets).
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Undum Alternatives
Undum is described as 'Remember those Choose Your Own Adventure, or Fighting Fantasy books? Where you got to choose what your character does next? Well if you think of that in a web-page you have hypertext interactive fiction, or HIF' and is a game development tool in the development category. There are more than 25 alternatives to Undum for a variety of platforms, including Windows, Web-based, Linux, Self-Hosted and Mac apps. The best Undum alternative is Twine, which is both free and Open Source. Other great apps like Undum are Dream Novel, Inky by Inkle, Ink by Inkle and QuestJS.