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Show HN: Cozy Cafe – A browser-based idle clicker game, made with Claude Code

2 points| sawirricardo | 1 month ago |cozycafe.sawirstudio.com

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sawirricardo|1 month ago

Built this with Claude Code Opus 4.5. It's an idle/clicker game where you run a coffee shop.

Tech: Pure HTML/CSS/JS, Web Audio API for sounds, localStorage for persistence, Stripe for payments.

The interesting parts: - Balancing exponential growth is tricky. Used cost multipliers (1.4x-1.8x per upgrade level) - Web Audio API can generate satisfying sounds with just oscillators - Prestige systems add surprising depth to simple mechanics

I asked Claude to just do this pretty simple - about 1200 lines of JS total.

Happy to chat about this new way of "we can just build it"