Twine - Twine is an open-source tool for telling interactive, nonlinear stories.
5-Minute RPG - A quick, pure React game in the browser
Ink by Inkle - ink is a popular open source scripting language for branching stories, designed for writers
Dungeon Alchemist - AI-powered mapmaking software for Tabletop RPGs
Quest - Quest lets you create sophisticated text-based games, without having to program.
Templar Battleforce RPG - An addictive mix of strategic combat and squad building.