Martyn Brown has left Team 17 after 20 years at the helm.
In a post on Facebook, Brown thanked his colleagues.
"OK, I can finally announce that I left Team17. I had an amazing 20-year ride and whilst it's the end of a truly enjoyable period of my life, it equally signals the start of a really exciting new one.
"My sincere, heartfelt thanks to everyone who helped, in any way, shape or form over those two glorious decades. I leave Team17 in great shape, but now is time for my own adventure. See you at DICE and/or GDC..."
Brown now lists himself on Facebook as an "Independent Video Game Consultant (Positions TBA) February 2011 to present".
West Yorkshire developer Team17 is best known for the Worms series, but games Superfrog and Alien Breed continue to command a loyal following.
Brown co-founded the developer, which made its name on the Amiga. In recent years released multiple Worms games and downloadable Alien Breed titles.