US Games / Vidtec Games
US Games and Vidtec were the same company, but released under separate company names, though I'm not sure why. These games were better than other third party games, and none in particular are extremely difficult to find. A collector should be able to put together a complete boxed collection for reasonable money. The most famous of the batch would probably be Towering Inferno, based on the movie with the same name. There were a total of 14 games released.