All levels unlocked.
But everybody needs wood around these places, to make a fire and keep themselves warm in the cold mountain nights.
Be careful on those off-roads not to stumble and loose some of your precious wooden stumps and make sure you cross over all obstacles with minimum effort. Lumber truck games might be tricky at times, with challenging tracks ahead, but giving you a great feeling of victory when you complete each level.
You have five levels of cool drives to prove your professional lumber truck games skills, so don;t miss out. Stay focused on the road ahead and do what you need to do to make sure you deliver a maximum amount of lumber to your neighbors. Good luck!