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Screenplay Tension Arc Simulator

Interactive 3D screenplay-structure simulator: shape a dramatic tension curve across the three-act / beat-sheet model, drag plot-point intensities, and watch a live ribbon graph plus pacing analytics update in real time.

Geology & Earth Science2DModerate60 FPS📱 Mobile-adapted🌍 Earth

Great screenplays are built on a page-mapped structure of rising and falling dramatic tension — this simulator turns that structure into an interactive 3D ribbon graph. Set a total page count, drag the intensity of each classic plot beat (Inciting Incident, Plot Point 1, Midpoint, Plot Point 2, Climax, Resolution), and watch the tension curve — and its act boundaries — recompute live using the same smoothstep interpolation and page-fraction act breaks that story consultants and screenwriting software use to diagnose pacing. A read-through playhead sweeps the script page by page, and live analytics flag a sagging middle or a missing climax spike, the two pacing failures scripts get rejected for most often.

⚙ Under the hood

This simulation allows you to craft a compelling screenplay by focusing on character development, plot structure, and dialogue – the core elements of screenwriting. Experiment with different narrative techniques to create a story that resonates with audiences.

Screenwriting

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install