So, in the US, we have fair use copyright, as I'm sure something similar exists in Europe. As this is ony taking a small portion of the work, has been adapted roughly 20-40% in terms of original content and added-to in terms of bounding boxes and adventure_core integration, and does not remove a possibe revenue stream from the original creator, I had put this up under fair use copyright usage. Make your own call, thank you: https://fairuse.stanford.edu/overview/fair-use/four-factors/
And as for permission from the author, that's not needed with steam workshop content, here are the relevant snippets from the steam workshop:
Workshop Contributions are Subscriptions, and therefore you agree that any Subscriber receiving distribution of your Workshop Contribution will have the same rights to use your Workshop Contribution (and will be subject to the same restrictions) as are set out in this Agreement for any other Subscriptions.
You may, in your sole discretion, choose to remove a Workshop Contribution from the applicable Workshop pages. If you do so, Valve will no longer have the right to use, distribute, transmit, communicate, publicly display or publicly perform the Workshop Contribution, except that (a) Valve may continue to exercise these rights for any Workshop Contribution that is accepted for distribution in-game or distributed in a manner that allows it to be used in-game, and (b) your removal will not affect the rights of any Subscriber who has already obtained access to a copy of the Workshop Contribution.
If a fair use claim is on a "make your own call" basis, not an "it's painfully obvious" one, then it might be on too-shaky ground for CDB, even if ultimately it's valid ... and even when fair use IS obvious, it's still sometimes disputed.
The Steam Workshop license itself is quite a tangle, e.g. what's all this about Subscribers, does being one allow you to sublicense the work under ANY terms, what are the actual terms themselves, and how do they apply to 3rd parties without any relationship with Steam or the original creators?
It would be, at the very least, REALLY helpful if you could find content with a "real" license. Alternatively, you could distribute a carefully-licensed version via CDB, and a version with high-quality models (or a pack of drop-in replacement assets) elsewhere.
Absolutely, and all future ones will use a much better defined, free license. I had just done the work on this already and figured I'd upload the example, as the work was for a private project (non distributed) .
Thank you for taking the time to respond thoughtfully :thumbs up: