The Technical Journey of Clair Obscur: Expedition 33 | Unreal Fest Stockholm 2025

In this session recorded at Unreal Fest Stockholm, Sandfall Interactive shares their experience of shipping their first game, ‘Clair Obscur: Expedition 33’ as a new studio.

They discuss the technical challenges with stability, content management, and optimization when scaling up both scope and team, and going from a prototype to a multi-platform commercial release in a project with a lot of legacy assets and loose reference management.

The talk also explores the studio’s methods and tools to chunk their packaged game data to support technologies like PlayGo for PS5 and StreamingInstall for Xbox, and their approach to enable late-stage changes without compromising the stability of the game at launch.

Learn more about Unreal Engine here: unrealengine.com

#ClairObscurExpedition33, #SandfallInteractive, #UnrealEngine, #UE5, #UnrealFestStockholm