From English Wikipedia:
Epyx, Inc. was a video game developer and publisher in the late 1970s and throughout the 1980s. The company was founded as Automated Simulations by Jim Connelley and Jon Freeman, originally using Epyx as a brand name for action-oriented games before renaming the company to match in 1983. Jon Freeman left the company in 1981 to start Free Fall Associates, and when Automated Simulations was rebranded as Epyx, Connelley reformed his developpment team into The Connelley Group but continued to release the games under the Epyx umbrella.
Epyx published a long series of "hits" through the 1980s, but nevertheless went bankrupt in 1989 before finally selling its assets to Bridgestone Media Group and shut down in 1993.