sim

Sim is a compact pencil-and-paper graph game for Poe. Players claim lines between six dots, trying to leave every triangle unfinished because the player who completes a triangle in their own color loses the round.

The app uses synced-store for shared turn state, deterministic rule helpers for every edge and triangle, and a Three.js graph scene sized for small Poe feed iframes.

What you can do

• Claim edges: Tap any glowing unclaimed line to add it in the current player's color.
• Avoid triangles: Risky lines are highlighted when they would complete a same-color triangle.
• Practice traps: Load the deterministic trap drill to see a one-move losing triangle.
• Track rounds: New rounds keep Red and Blue win totals in synced game state.
• Play on mobile: The layout is tested at 300px by 500px with canvas readiness checks.

Scripts

• bun run doctor checks local prerequisites.
• bun run type-check runs TypeScript.
• bun run test runs focused rules, mutator, and happy-dom UI tests.
• bun run build creates the Poe runtime bundle in dist/.
• bun run test:playwright runs browser E2E and viewport tests.
• bun run screenshot:regen rebuilds and writes assets/screenshot.png.

Package

• Poe handle: sim
• Package name: @boardgames/sim
• Runtime bundle: dist/