I've been working on a submission to the One Page Dungeon contest, which updated their guidelines over the weekend. The guidelines have changed since last year, and now specify that
You are permitted to use an AI program such as ChatGPT to help develop or inspire your submission, but we strongly recommend writing the text yourself. If you choose to use an AI art generator such as Midjourney or Stable Diffusion, you must disclose the tool(s) you used in your submission. For the 2023 contest, all artwork will be judged on its own merits.
I don't think I'm comfortable participating. This is not intended as a knock on the contest, which seems really cool and is clearly a labor of love. But it's not a standard I want to see established, even for amateur work.
Partly this is to support the people who do the work professionally, of course. But it's also a matter of aesthetics! TTRPGs have a legacy of art done by untrained illustrators, work that's a best-attempt-I-can-muster translation of idea (vision!) to page. Amateur art brings an undeniable energy to homemade games. Using AI art generators to create images that look professional sacrifices that energy in exchange for a veneer of market logic.
(And I'm not even touching on the decision not to outright ban using ChatGPT to write the game text. Such low-hanging fruit!)
