Choice-based narrative template: build it step by step
One scene, two endings that do not share their next line. Play both. Do not add a third branch until those two are different on purpose. Story to game is that fork.
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The sentence you type
"Make a choice-based narrative. Start with one scene with two choices that lead to different endings."
The brief the AI writes back
First playable: one scene with two choices that lead to different endings. The loop to get right: read, choose, live with the consequence.
Build, play, adjust
Compare with the games that define the genre: Life Is Strange (Dontnod Entertainment, 2015), The Walking Dead (Telltale Games, 2012) and Detroit: Become Human (Quantic Dream, 2018).
What makes it finished
A player can point at the choice and at the scene they got, and the other choice would have shown them something else.
Related templates
Start from this template in the Flockbay app
Describe your version in one sentence. The AI writes a brief from the template, and nothing is built until you approve it. Free for Windows and Mac.