Zimag was a third party producer of Atari 2600 games. But video games was not their number one priority. You see Zimag was a part of a larger corporation called "Magnetic Tape International". They wanted to cash in on the video game craze, so they started making Atari games. But they were not any good at it. All their titles are pretty bad, and they soon stopped making games due to poor sales. The Zimag brand name was retained by that division of the company however. But now they make blank tapes for VCRs and audio cassette recorders.
Zimag Games