ONE MORE FISHING

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

One More Fishing contains selected pre-generated content created or refined with generative AI tools during development. This includes selected in-game artwork and UI assets, selected Steam store and marketing artwork, audio assets such as music, ambience, sound effects and selected character voice lines, plus assistance with narrative and quest drafting and localization. All shipped content is selected, edited and integrated before release. The game does not use live-generated AI. It does not contact generative AI services while running and does not send player prompts or player data to such services. At runtime it only loads, selects, animates, processes and mixes fixed content prepared before shipping.

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.