Designasaurus II: Build-A-Saurus is an educational game released for MS-DOS in 1990 by Britannica Software. Aimed at younger audiences, the game allows players to design their own custom dinosaurs by combining different body parts, then observe how their creations survive in prehistoric environments. It mixes science with creativity, teaching paleontology concepts through interactive play. The game is remembered for its educational value, engaging design, and appeal to dinosaur enthusiasts.