Shanhai Exorcist: Yin-Yang Chronicles

The developers describe how their game uses AI generated content like this:

This game includes pre-generated content created with the assistance of generative AI tools. AI-assisted workflows were used for portions of the character, creature, card, environment, animation, visual-effect, music, sound-effect, icon, and promotional assets. All generated outputs were reviewed, selected, edited, composited, and integrated by the developer. The game does not use generative AI during gameplay and does not send player data to external AI services.

Required on Steam store pages since 2024. It covers content that ships in the game, on its store page or in its marketing — Valve does not require a disclosure for AI tools used during development, so this says nothing either way about how the game was made. Check it on Steam.