Undertone is a music and sound team. A community of musicians and sound designers in the mod scene. If your mod is in need of sound engineers or composers to create full and original soundtracks/SFX for your modification, we here will supply you with dedicated team members that will achieve your needs.
Ambience track for a horror game, Resident Evil feel, low visibility, spooky, blood, so quiet it's disturbing.
Firstly, the song is not quiet, it resonates, but this is perfect for the dark mysterious atmosphere you are talking about.
It gave me the sense that I was inside of a very dark cave with very low visibility.
The only thing that I didn't like was the added sound that sounded like a glockenspeil (however you spell it), it took away the mystery, perhaps a more subtle and more eerie sound would be best to take it's place.
Otherwise, I enjoyed this track, it kept me interested and had the effect that you said it had.