BecauseUs, a budding game startup affiliated with VFX powerhouse M83, is set to pull back the curtain on its debut title, Rebellion, at the ChinaJoy Indie Game Festival held in Shanghai this coming August.

Launched just last year, BecauseUs is a newcomer with grand ambitions for AAA-grade development. The studio is led by CEO Lee Sung-jae, a versatile veteran whose credits span screenwriting and directing across film, television, and webtoons. Joining the CEO are seasoned game designers formerly of NCSoft and Smilegate, alongside core artists who have cut their teeth on major cinematic concept work.

Rebellion, which is being crafted for both PC and console, is a dark fantasy action RPG centered on a human slave’s escape and quest for vengeance after being thrust into the demon realm. The gameplay blends Soulslike combat with massive boss-focused puzzle elements, chain-based mechanics, and climbing sequences. Designed with North American and European audiences in mind, Rebellion promises an immersive structure where cinematic narrative and gameplay are woven together with high-level polish.

With Rebellion as the spearhead, BecauseUs is already ramping up its lineup. The studio is simultaneously mapping out plans for Hosan, an occult RPG rooted in Joseon-era folklore, and Toys, an anime-inspired free-to-play title.

Before the main event at ChinaJoy, BecauseUs will take the stage at the China International Game Developers Conference (CIGDC) to share the project’s vision, development insights, and future roadmap for Rebellion.