Show HN: Checkpoint Airport security sim game built with Claude Fable

Category: other

Tags: game, simulation, pathfinding, crowd-simulation, typescript, vite

Score: 6.0/10 (Innovation: 7, Technical: 6, Documentation: 6, Utility: 5)

Checkpoint is an airport security queue simulation game where players control the environment (barriers, gates, lanes) rather than individual passengers, using cost-based pathfinding to create realistic crowd behavior. It explores a novel game design space—tuning frustration vs. throughput via spatial layout—and is built as a playable web app with a full economy and upgrades.

Target audience: game developers, simulation enthusiasts

Repository: https://yaodub.com/games/checkpoint/ · TypeScript · MIT

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