HundredStar Games

HundredStar Games is an independent British AAA video game development studio founded in 2023 by Sefton Hill and Jamie Walker. The pair previously co-founded Rocksteady Studios, but HundredStar is a separate company focused on building new original games under its own leadership.

The studio develops high-fidelity, single-player action-adventure experiences for PC and current-generation consoles. Its debut project is an unannounced AAA action-adventure game being developed in Unreal Engine 5 through a publishing and financing agreement with Xbox Game Studios Publishing.

Development capabilities

HundredStar’s full-cycle game-development work encompasses:

• Pre-production, game design, technical design and gameplay engineering
• Unreal Engine systems programming, level design and world-building
• High-fidelity character animation, including keyframe and motion-capture integration
• Narrative systems, dialogue production and immersive audio engineering
• Internal quality assurance across production

The company positions itself around a deliberately focused production model intended to support agile development rather than the scale of larger game-production pipelines. Its team combines experienced developers with emerging talent and works across disciplines including animation, character physics, technical design and dialogue audio.

Current focus

HundredStar is actively developing its first announced-in-principle project: an Unreal Engine 5 AAA single-player action-adventure title. The game has not yet been publicly named, and no release date has been announced. The studio’s work is aimed at interactive entertainment and digital-media audiences, with development targeting modern PC, Xbox Series X/S and PlayStation 5 hardware.