itch.io

Blending narrative storytelling with player choice, often text-based experiences where readers shape the story through their decisions. These works can range from simple branching narratives to complex simulations, offering immersive worlds and character-driven plots that unfold based on user input.

Taking place after a huge catastrophe (eg. man made or natural disaster). See also the more political theme dystopian.

Twine is a free and open source tool for telling interactive, non-linear stories.