SUCCU’S STORY

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

Artificial intelligence was used as a support tool in the creation of scenarios and characters, with the aim of improving the aesthetic quality of the game’s original sketches. Character designs are created manually by artists and writers, while AI is used to speed up the drawing process for certain details. Likewise, AI is used to optimize the creation of backgrounds and H-scenes. At no point is artificial intelligence used to generate content directly during the gameplay.

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.