Download Bridging the Gap
Bridging the Gap is a game that can be played by children and adults, too. The game has a good physics engine that is mandatory for a game of this genre, where you will have to build a bridge in order to fill a gap between two cliffs. If apparently the game is easy, as you progress it will become much more difficult.
You will receive a limited amount of steel bars that you can use in order to build your bridge and you will have to use them as wisely as possible if you really want to finish the bridge.