Widget Workshop: A Mad Scientist's Laboratory is a hands-on science kit, for use on the computer and off.

It was designed by Lauren Elliott, co-author of the Where in the World is Carmen Sandiego game series.

Much like in The Incredible Machine, users can solve a variety of puzzles using a limited selection of parts or tinker with the freeform mode.

Unlike the Rube Goldberg nature of The Incredible Machine, the parts in Widget Workshop are not restricted to the mechanical or physical.

Items include display boxes, graphing windows, random number generators, and mathematical tools ranging from addition and subtraction to Boolean logic gates and trigonometric functions.