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To create innovative, top-quality action games set in immersive worlds.
-10% employee growth in 12 months
Certain Affinity is an action games development studio founded in 2006, with a long-standing partnership with Microsoft. It's worked on Doom, several Call of Duty titles, Left 4 Dead, and much of the Halo franchise including Halo Infinite, alongside its own projects like Crimson Alliance and Age of Booty. Because of this, it's "support studio" reputation is well-earned, the kind of team publishers quietly lean on to make their biggest franchises just that bit better.
In 2024 the company was acquired by Keywords Studios, a global leader in game development services. It's a sign of where the studio is headed - deeper investment in the co-development and multiplayer expertise it's built its name on, with Halo, Call of Duty, and World of Tanks still very much part of its slate.

Kirsty
Company Specialist at Welcome to the Jungle
Jun 2025
$10m
GROWTH EQUITY VC
Aug 2017
$5m
SEED
Max Hoberman
(Founder & CEO)Prior to Founding Certain Affinity in 2006, Max was a Multiplayer & Online Lead at Bungie Studios/Microsoft.