Boson X v1.0.5 (free version) (Windows)

Boson X is a fast-paced rotational runner set in a particle accelerator. Build up speed inside a massive particle accelerator and generate high-energy collisions to discover strange new particles. Use precise timing and fast reflexes to navigate a subatomic world where floors and ceilings don't exist. Be fast enough to find the elusive Boson X.

A note from the developer:
"Boson X has been tested on Windows 7 and should also work on Windows 8. Earlier versions of Windows may work, but are not officially supported. It uses OpenGL, so you may need to install the latest graphics drivers from your video card manufacturer to get optimal performance."

This is the free version from the official website: http://www.boson-x.com

The leaderboards work, just press [O] after you die.

If you like the game, support the developer, buy it!
http://store.steampowered.com/app/302610/