Overview
- Michael Kamm published a comparison video on May 26 that argues Hoyoverse’s Zenless Zone Zero minigame closely mirrors his 2024 Steam puzzle game Ouros.
- Kamm says Ouros launched in May 2024 and that Hoyoverse added a similar minigame called Ether Tuning in June 2025, a timeline he uses to support his claim.
- The video points to concrete overlaps in mechanics and design, including bending a track so a moving ball hits numbered targets in order, portals that teleport the ball, a reverse-direction control, and a hint system showing the intended track shape.
- Hoyoverse has not issued a public response and Kamm says he posted the footage after receiving messages from Zenless Zone Zero fans accusing him of copying the studio’s minigame.
- The dispute highlights a recurring tension between small creators and large studios, with prior indie accusations against Hoyoverse noted in coverage, and raises questions about how design similarities are resolved when big publishers have far more resources than solo developers.