itch.io

Games which seek to lead the player on a journey through an uncertain and challenging world.

Visual novels are interactive stories. They focus mainly on character development and plot rather than action and gameplay mechanics.

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

Focused on using its text, moreso than its visuals or audio, to tell the bulk of its story/plot. (Still can have great audio and visuals, though!)