- fixed game playing too fast on high refresh monitors
- fixed map 2 level 13 being unsolvable

A whole new 80 level map awaits!
Concrete on the map is cheaper and more plentiful, but traffic is worse! Luckily we've invented toll booths to earn some extra efficiency points.

At long last, Undo technology has been invented!

And finally, your best scoring designs will be saved while you work on potential improvements. You can restore your highest scoring design at any time.