CharmEdge Deck

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

A small portion of the game's backstory is introduced through AI-generated mini comics, totaling about 30 seconds of reading time. Card backgrounds were drawn by AI, item icons were AI-drawn and then edited, and the music is AI-generated.

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.