ADLENGINE is described as 'Adliberum Engine is a multiplayer compatible role-playing text adventure engine. Complete with real-time world-building commands; craft text powered games and scenarios alone or with others' and is an app in the Development category. There are more than 10 alternatives to ADLENGINE for a variety of platforms, including Mac, Windows, Linux, Self-Hosted solutions and Online / Web-based. The best alternative is Twine, which is both free and Open Source. Other great apps like ADLENGINE are ChoiceScript (Free, Open Source), Inform (Free), Ink by Inkle (Free, Open Source) and Squiffy (Free, Open Source).
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.
Inform is a design system for interactive fiction based on natural language. It is a radical reinvention of the way interactive fiction is designed, guided by contemporary work in semantics and by the practical experience of some of the world's best-known writers of IF.
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).