There are two possible interpretations of “other”: generative AI output that does not fit in the categories (graphics, audio, text, code), and non-generative AI use. They are different. They must be treated differently.
Puzzle design and level design are not in any of the given categories unless you stretch the categories to the point of meaninglessness. Ask an AI to generate a Sokoban level for you. If you call the result graphics, you’ve stretched the definition of graphics to also include text. (After all, it’s all pixels on the screen.) If you call the result code, you’ve stretched the definition of code to include graphics, audio, and text. (After all, it’s all encoded information that the computer uses to produce some sort of output.) If you call the result text, then the entire game is text (which is how literary theory uses the term “text”). If you call it audio, then you’re just being an obnoxious and have abandoned all definitions.
Non-generative use of AI is something entirely different. It’s finding (not fixing) bugs with AI. It’s using an AI-powered search engine to look up information. It’s letting AI gamble on the stock market to fund your game. And yes, it’s letting using an AI to test your game.
Using non-generative AI is practically unavoidable and has little to do with the actual content of the game. It’s way to broad of a category to require disclosure. Disclosing specific, clearly defined subsets of this broad category may be useful, but Itch defines no such subsets, and they would have to be disclosed separately from generative AI.
Generative AI output that does not fit into the four categories, on the other hand, is common and should definitely be disclosed.