ONE BUTTON · FREE PLAY · EST. 2026
Lumen Runner is a complete one-button game drawn entirely in code — every shard, ridge, and spark is procedural; the page loads no image or audio files. Run through the dark, jump the magenta shards, and catch the light motes. The run gets faster the longer you live. Until you press start, the cabinet plays its own attract-mode demo, the way the real ones did.
Game-feel details to steal: about 100 ms of coyote time after leaving a ledge, a 120 ms jump buffer so early presses still count, variable jump height while you hold, and a brief screen shake on impact — used once, where it means something. Your best score is saved only in this browser. The bleeps are synthesized live and stay off until you switch them on.