a writing suite for screenwriters
Collision builds a living model of your screenplay, understands your aesthetic, and accelerates writing through AI-powered organization and simulation tools.
how it works
A structured model of your story — beats, characters, causal logic. Change the ending or a character's nature, and the consequence is traced everywhere it touches.
where they meet
Run the world forward and let characters act as they would in-world. Or work backward from an ending to what has to be true before it.
Structure keeps the simulation coherent across a feature. Simulation makes the structure generative.
what that gets you
"The protagonist is unlikeable" becomes specific changes that propagate through every scene they touch.
Set the conditions, let the cast act in-world, and see what the collision actually produces.
Start from the ending you want and surface what has to be true for the audience to earn it.
private by design
Collision tunes to a single project — one cast, one internal logic. Nothing you write trains a model, and nothing ever leaves your hands.