FREE: Boson X [Steam Link]

The listing, Boson X [Steam Link] has ended.

Quantum jump your way to critical velocity in Boson X: the rotational runner set in a particle collider.

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.

Features:

Fast-paced, unforgiving gameplay
18 challenging levels to master
3 highly qualified physicists to play as
Steam leaderboards and achievements
No superfluous powerups, coins or XP systems - just deadly serious scientific research

More info: http://store.steampowered.com/app/302610/
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This game works on mac and linux too! Also includes steam trading cards

Happy holidays & Good Luck!