"Trackbuilder" is a whole virtual train set! Kids can build an infinite variety of tracks, and then watch their engine chug along them! A vast selection of props and environments adds to the variety. Created for HIT Entertainment and PBS, for the official PBS Thomas and Friends website; Gwenevere Singley was responsible for game design, animation and programming as well as a quantity of game art. (Thomas and Friends(TM) names and characters are trademarks of Hit Entertainment Limited.) Play the game here!