Video games and images become Science or Math if measurement is built into them, Edward Tufte

The philosophy is that a scientific image isn't a scientific image unless it has a scale of measurement built into the image. Here then are some ideas for building measurement scales into 3D images. (Also, the opening chapters of Visual Explanations and Beautiful Evidence, provide examples of scaling of 3D images.)
Call out a specific element, via annotation perhaps, and state its size. The call-out should be imbedded in the image.
Tie an object of known size to the image. [dime shows size of bug below]For example, the diameter of Earth isn't all that much greater than the Cassini division. That tells a lot about Saturn's size; also the Cassini division shows a foreshortening perspective effect and thus the scale is carried around Saturn in perspective.
Show the changing size of the Earth dot at a number of prominent locations in the depth dimension."  
from Edward Tufte's forum, http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0002cI
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Therefore, for a video game to become math or science education, just add measurement to it.  Instead of turning "so much" have the child type in a number or use a protractor that shows angles. 
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Make Your Stuff protractor is at: http://www.lawrencegoetz.com/protrac.htm