Uptime

A pixel-art endless runner for the browser.

Uptime is a pixel-art endless runner I built with Claude Opus 5.5. You play as a robot escaping a data center that's going dark behind you, drawing platforms beneath it with your mouse or finger to keep it moving. Stay ahead of the darkness for as long as you can.

The game runs entirely in the browser using JavaScript, HTML5 Canvas, and the Web Audio API, with no game engine or framework. Claude generated all the code, pixel-art sprites, backgrounds, sound effects, and chiptune music. Nothing was drawn, recorded, or composed by hand.