Dark Music Database: Royalty-Free | Creative Commons
Primarily aimed at film & TV professionals, production companies, trailer editors, documentary makers, producers, students and independent filmmakers looking for atmospheric music to license for use in their films, documentaries and videos. But I’ve also heard from ‘non-industry’ people who just enjoy listening to atmospheric music, so if you like cinematic film soundtracks, dramatic trailer cues and dark textural soundscapes you can also just buy and download the music tracks for personal listening without a license (apart from the royalty free collections which are only available with a license attribution 4.0 international (CC BY 4.0) via https://SINIUS.CO.UK