Superbot Entertainment and Sony have gone their seperate ways following the release of PlayStation All-Stars: Battle Royale.
No official figures have been released, but the game is not thought to have done well, having failed to make the top ten list either for its November release or the following month of December.
The publisher described the split as "amicable" and said post-release support for Playstation All-Stars would continue at its Santa Monica studio.
Superbot is an independent company, but was incubated at Sony Santa Monica. Some reports suggest the studio was formed specifically for the creation of Playstation All-Stars.
MCV's sister site Develop has the full story.