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A subgenre of the adventure game, point-and-click games typically involve interacting with background objects, talking to non-player characters, and using an item inventory to solve puzzles that allow the player to progress through the story.

Ren'py is a free and open source Visual Novel Creator.

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!)

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