Of course apparently its THIS song in your game. It says royalty free however the music creator states that he will be placing copyright claims on any youtube videos that has the music and its to "protect" his music not getting stolen. However thats not how copyright works.
I am also happy to hear you all are creating more and improving. Which being a creator is all about. :)Cool to know. The guy who made it has a link in his description saying it is free to use but if its on youtube he will claim it. Which isn't how fair use or how music protection works, since he gets to put an ad in my video he gets paid for it. Its not your fault or the group its the guy who made that music not understanding copyright.
No problem, I try to help out and give feed back as much as I can. Its why I got into playing indie horror games on my channel because peeps like yourself are the future of gaming. Best way to improve is to be among fans and listen to them. Unlike most bigger gaming companies they barely do this if at all, all they care about is money and not passion of a game and its series.