Fantastic Contraption: A fun online physics puzzle game
This is possible one of the great games EVER! Basically you make little vehicles or machines to carry something to the goal. After you beat a level you can save it and link it to people and you're able to view other peoples creations.
I've made a couple nifty designs so far but I like this one the best
Fantastic Contraption: A fun online physics puzzle game
I call it.. Jawa Sandcrawler turns into bridge for Pod Racer :P