Thankfully, Fairchild F games are numbered making it easy to determine which game was released last. Alien Invasion, at #26, was the final game produced for this groundbreaking system. Yeah, "groundbreaking", it was the first game system with a CPU and programmable cartridges. It couldn't complete the Atari 2600 though and didn't even make it to the 80s (where it would have died in 1983 anyway).
The release year for Alien Invasion isn't written in stone so I went with the copyright year of 1979.