Hi! Thank you! really glad the pack resonated.
The clause is aimed at generative art, writing, and audio: I don't want the assets trained on, run through a model, or sitting next to AI-generated content in a released project. Development/coding tooling isn't what I had in mind when I wrote it (I understand this is a fine line).
Given what you've described; no AI-generated artwork, no training use, I'm happy for you to use the pack in your game with the credit line.
Cheers, and best of luck with it.