Jawa is described as '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)' and is an website in the Development category. There are more than 10 alternatives to Jawa, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Self-Hosted solutions. The best alternative is Twine, which is both free and Open Source. Other great sites and apps similar to Jawa are Construct 3 (Freemium), Adventure Game Studio (Free, Open Source), Wintermute Engine Development Kit (Free, Open Source) and ChoiceScript (Free, Open Source).
Spatterlight is a native Cocoa application plays most kinds of interactive fiction game files: AGT, Adrift, AdvSys, Alan, Glulx, Hugo, Level 9, Magnetic Scrolls, TADS (text-only), Quill, and Z-code (except v6).
Narrat is a narrative game engine for text-based games. Game dialogue info is written in files with a similar syntax to Ren'Py (.rpy files). Those files get loaded by the game engine which plays through them.
Yarn Spinner is a tool for creating interactive dialogue for games. Write your conversations in Yarn, a simple programming language that's designed to be easy for writers to learn, while also powerful enough to handle whatever you need.