Located in the north-east of England, Pitbull Studios (previously Midway Studios Newcastle) has been Epic Games' de facto UK base for a number of years.
And now the US developer and tools outfit has made the relationship formal.
Rebranded as Epic Games UK, the studio is described as a "fully integrated team driving Unreal Engine 4 development in the region".
"Pitbull has been essential in helping us develop the best tools and technology for building the next generation of games," said Tim Sweeney, Epic's founder and CEO.
"They've been invested in UE4's evolution since its early beginnings, and their dedication is unflinching."
Welcome to the mothership
Helping in the transition is James Golding, who left the UK 12 years ago to join Epic in North Carolina, and is now returning.
He'll be based in Guildford, where Epic Games UK has an office, alongside another office in Leamington Spa.
Also involved is Mike Gamble, who runs the Unreal Engine licensing business in Europe.
"Setting up a bespoke Epic presence here and fully utilizing the Pitbull team as part of that enables us to support Unreal Engine 4 developers across Europe on an entirely new level," he said.
As part of the move, the company is also looking to expand with a number of open positions, ranging from programmers to developer relations and support roles.
You can see a full list on the Epic careers website.