Forts & Castles

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

During development, some in-game surface textures (e.g. ground/terrain tile materials) were created with the assistance of generative AI image tools and then hand-edited and integrated into the game as static assets. All such content is pre-generated and fixed at ship time; the game does not generate any content live at runtime. We have reviewed this content to ensure we have the appropriate rights to use it and that it does not infringe on the rights of others.

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.