Fun little game! A few thoughts:
- The controls are really twitchy with mouse/keyboard, and movement is so fast that it can get frustrating while trying to make small movements. May I suggest a 'Zoom/Slow Toggle' button/key, which doubles the view while halving the character's movement speed? This would make placing objects, melee fighting, and driving the truck sooo much easier.
- A larger pickup range would be very helpful, as would doubling the time objects stay on the ground before disappearing.
- Trees tend to explode into planks that fly all over the screen. I'm assuming that this is a bug.