Music was licensed under CC BY-NC-ND 4.0. and allowed by author to be redistributed only in original mod. You will probably need to steal something else

Hmm, I wasn’t aware of that. It didn’t seem to be in the license readme for the original mod. Thanks for the info, I’ll double check and remove it when I get back to my computer if you’re correct.

It’s a shame we have to be in this situation, it’s such a minor thing that you could make an option, but instead we’ve gotta be in this situation.

Reading through the license a couple of times, I don't understand why it breaks the license since the music (the entire sound folder in fact) hasn't been modified or remixed in any way, the only changes I've made are to GPLv3 licensed mod code. But you're clearly more experienced than me, could you explain how it breaks the license exactly? I want to learn more about licenses and I don't want to remove something unnecessarily, but if you can explain how it breaks the license I'll take it out.

Because of how game works only way of including this music was packing it with mod, but this license was picked because it was most restrictive from all that could make sense. Original author wish was so music was only for my project, and this is better reflected in readme newer version of mod.

Unlike some other people I don't blindly steal other people work, but rather ask if I could use something, or in case of greater change if author is fine with it.
I would probably rather reimplement something from scratch than steal it against author's will.

Spiteforks like this are one of the reasons I make less of my stuff open source, than in past. People don't use this license to create something cool as I thought they will be but rather to steal.
People like you just don't respect other people work, and you proven me right even more on that.

It’s not stealing, it’s forking under GPLv3. This fork primarily exists because you’re writing code to prevent people from running other mods arbitrarily. I didn’t want to do this, but you’re so stubborn that you can’t tolerate people having fun in their own way, and I won’t stand for that. Your control.lua scripts are incredibly petty and you should be ashamed.

I really appreciate the work you’ve done and I think your mods are really good, but practices like this are awful. I tried to do this as carefully as possible and not break any licenses because I do respect your work, but I don’t respect the way you act because you don’t respect the rest of the community, and this is more proof of that.

I also don’t blindly steal. I read the licenses several times to be sure, and I’m still not convinced including the music here actually does violate the license. I didn’t bother asking you because you wouldn’t have listened even if I did, people have already requested similar changes and made their feelings clear about your malicious scripts and you didn’t care. You’re the type of mod creator who would rather delete threads and silence criticism than accept that maybe you’re wrong about something, and that’s why I wanted an open source fork that same community you’re trying to suppress can contribute to.