@kentcdodds/asteroids

Classic canvas Asteroids game with vector graphics, touch controls, and a saved high score.

README.md

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A classic vector Asteroids game, playable by anyone at https://asteroids.kentcdodds.com.

Keyboard: ←/→ or A/D rotate, ↑ or W thrust, Space fire. Space/Enter starts or restarts.
Touch: floating joystick on the left (turn toward the stick; push further for more thrust) and a big FIRE button on the right; steer and fire together. Tap to start.
Big asteroids split into medium, then small. Each level adds a rock and speeds them up.
3 lives, with a short blinking invulnerability after respawn.
Extra life every 10,000 points.
Audio: synthesized sound effects and a looping chiptune, all made in the browser with the Web Audio API (no audio files). Toggle with the SOUND / MUSIC buttons (top right) or S / M. Choices are saved in localStorage (kody-asteroids-sound, kody-asteroids-music). Audio starts after your first key press or tap.
High score is saved in this browser's localStorage (kody-asteroids-hi).
Install it: an INSTALL button appears where the browser supports installing (Chrome, Edge, Android). On iPhone/iPad use Share → Add to Home Screen. Once installed or visited, it plays offline.
Updates: a new version downloads in the background and an UPDATE AVAILABLE message appears; tap UPDATE to switch, or it takes over next launch. The ABOUT page shows the current build and has a CHECK FOR UPDATES button.
Sharing: links show a 1200×630 preview image (og:image) of the game.