Yeah, I'm not including the plethora of other computers that were little more than a game system with a keyboard attachment. This is a matter of convenience though, while reading about the previous entry I spotted this one. World Series Major League Baseball was the last game released for the ECS, it also supported the Intellivoice module but didn't require it.
World Series Major League Baseball was way ahead of its time. It was leaps and bounds ahead of other baseball games of the era including the Intellivision offering. Unfortunately very few were able to enjoy the game when it was new.