Fluxline Undercity

Opening your game…

Fluxline Undercity

A standalone portrait-first Three.js transit runner set in a fictional underground thermal network. Classic lane shifts, vaults and slides are connected to a deeper heat-recovery loop: capture orange heat and cyan chill streams, keep both tanks balanced, exchange paired energy at loop nodes and spend Crossflow for emergency stability.

Install web app

Open your browser menu and choose Install app or Add to Home Screen. If unavailable, bookmark this page.

Games need an internet connection.