*[[Activision|Activision]]
*[[Alligata Software|Alligata Software]]
*[[Americana|Americana]]
*[[AMSOFT|AMSOFT]]
*[[Anco Software|Anco Software]]
*[[Rainbow Arts|Rainbow Arts]]
*[[Silmarils|Silmarils]]
*[[Silverbird|Silverbird]]
*[[System 3|System 3]]
*[[The Edge|The Edge]]