What is this?

[Cub]

So lately I played Night in the woods and I really like this piece of music from ost. But I wonder what kind of instrument is playing in the background at a given moment. Is it just pad? Or maybe it is some choir with effects? I'm not an expert so I do not know. Thanks in advance if someone knows.

 

[Moseph]

Choir pad is the simplest description of it. It's not an uncommon synth sound; most general synth preset banks will have something that resembles it, and you should be able to find tutorials for creating your own version pretty easily if you're so inclined.