A startup from MIT called “The Universe and More” is producing some excellent video games that engage the player in both fun and physics. Their first game was the Super Ultimate Graphing Challenge, in which the player reads a graph and identifies the position and velocity the object needs to have to match the graph. An iPad version is coming out soon. Their second game,  Polarity Shift, is a re-make of the Pong game and helps the player gain experience with electric forces and fields. As players progress, they unlock new levels and characters.