Runaway3d.io Info

Players control a gray alien navigating complex space tunnels where the rules of gravity are fluid. By using the left and right arrow keys, you can rotate the entire tunnel, allowing you to walk on walls or ceilings to avoid deadly gaps.

The platform features up to 15 unlockable characters, each with unique abilities—such as higher jumps or better speed control—to help navigate difficult levels. runaway3d.io

A survival game focused on dodging meteor showers and sliding under space debris. Players control a gray alien navigating complex space

It looks like you’re referring to — likely the online game runaway3d.io . you can rotate the entire tunnel

The primary draw of the site is the experience, which blends platforming with infinite running mechanics.