For me the main issue here is that this isn't just a mod or a small addition; it's essentially the same game with minimal changes. The reality is that the original developers did the bulk of the work, and now, if they ever decide to release it on platforms like Itch.io, they’ll be competing against this version. That’s the real concern—not just proper credit, but the fact that the original creators could be undercut of fans, support and donations by something that required significantly less effort to put together.
Mods and fan projects are great, but there's a difference between adding meaningful expansions and just re-releasing someone else’s work with a few tweaks. It’s about recognizing where the real effort was put in and ensuring the original team isn’t left at a disadvantage.
Hope that makes sense.