Here are some engineering-related flash games that we found, our team thought that might be to your interest:

Fantastic Contraption

An addictive game where you have to move an object to the final destination by building moving contraptions that obey the laws on physics.

Building Houses & Rotating Houses

Interactive math tools that helps with 3D visualization.

Cargo Bridge

Build a bridge and test your construction skills. Design one that will allow you to safely move your cargo from one side to the other.

* Copyrights and trademarks for the above mentioned flash games are held by their respective owners.