Designasaurus is an educational simulation game released in 1988 for the Commodore 64 by Britannica Software (developed by Intergalactic Development and DesignWare), where players set in a futuristic Museum of Natural History assemble custom dinosaurs by mixing and matching fossilized bones from real species like Tyrannosaurus Rex, Stegosaurus, and Brontosaurus—such as combining heads, bodies, tails, and limbs—while learning facts about dinosaur anatomy, ecology, and behavior.

In the "Walk-a-Dinosaur" mode, players control their creation via joystick (Port 2) across five side-view ecosystems, managing hunger by eating plants or prey, avoiding predators and hazards to ensure survival, with success earning a printable Dinosaur Hall of Fame certificate and t-shirt transfer images; "Print-a-Dinosaur" lets users output coloring pages of their designs.