Widget Workshop is a “software toy” designed for children. The game is
intended to teach children the principles of science, and encourage them to
apply their creativity to invent their own devices. In the game, the player
selects different components that perform certain functions (such as an input
device, a power switch, a randomizer, a logic operator, or an output display)
and links them together to form a “widget”. Widgets can be made for many
purposes, such as a puzzle, a calculator, a game, a logic gate, or a Rube
Goldberg contraption. The game is open-ended, although it does come with a set
of pre-made widgets and a book of challenges.

Widget Workshop: The Mad Scientist’s Laboratory