The priceless Sinclive Diamond has been stolen from the Jewel Room in the capital city of Spectraisia, Microdrivia, just before it's premier of being seen by the public. With the diamond stolen, the premier cannot be delayed or the public will doubt it's existence, so you have been assigned with the task of finding and bringing the diamond back. There is also talk of a fake version and this needs to be found as well and brought back. As you explore the surrounding areas you will get hungry so food needs to be found and eaten to keep your strength up. Diamond Trail is a text adventure where the screen has text describing each location and you type in commands with the keyboard to interact with your surroundings.