You will see they produced products for less consoles than Activision; dying and having their products absorbed by other producers. I always liked Demon Attack and Dragon fire is great. I was actually a member of their Numb Thumb Club back in the day, though they spelled my name Vim Ricky. Riddle of the sphinx was something that looked very cool on the box but didn't play so well. As you can see their boxes were a little goofy.
Riddle of the Sphinx
Swords & Serpents
Commodore 64 cartridges
Atari 800 / XL / XE Cartridges
I couldn't find any products for the 5200, 7800, Nes nor the Odyessy 2 so I think this is it.