Gyro13, a physics-based helicopter game, is now available to download for free, today only. Players maneuver through dark tunnels full of difficult conditions while also dealing with time limits to save miners.
✓ avoid or use the treacherous wind rifts to your advantage
✓ find ways to operate puzzling machines
✓ escape even from the most desperate situations
✓ deal with the lethal poisonous clouds
✓ master the powerful pulse cannon