Big Blue Box once existed outside of Lionhead as a satellite studio, with most of the work on the original Fable originating from them under Peter Molyneux's guidance. Since then, they've been ingested into Lionhead proper as the developer sought to internalize all of its development. Simon Carter co-founded Big Blue Box, and was the lead technical director on all three Fable titles. However, his time at Lionhead has now come to an end. Carter has announced his immediate departure from the studio to found a new upstart of his own.
Sam and Dene Carter had an enormous influence over the Fable series; spearheading development with Peter Molyneux on what would become Microsoft's biggest RPG franchise. The characters of Sam and Max whose haphazard adventures the player often stumbles upon seem to have been inspired by the Carter brothers, too.
Quite how there departure will affect Lionhead remains to be seen. It's a talented team, but their influence is obvious in the brilliant humor and tone of the series. Simon and Dene have left to form a company built around digital distribution for consoles and PC. The former admits it was a "very difficult" decision, choosing to leaving Lionhead, but explained the "new opportunities" eventually swayed his hand.
We wish both Carter brothers the very best at their new studio. [Joystiq]