Composed by Simon Chylinski.
This is the track Leviathan from Subnautica and the video is the Reaper Leviathan. I unfortunately had to stick with a still image (the color slightly shifts as the video progress though, woo) because I can't get anything good for a video loop. Although to be fair, I don't really watch the videos when listening to extensions myself, so I guess it doesn't hurt all that much.
I haven't extended in a long time and have been so out of it that I needed to work with something sorta simple and also out of my comfort zone. Just like this game. I've been really enjoying Subnautica lately and discovered this track in my recommended, found the file in the OST, and did my best to loop it. Apologies if it's not perfect but this is as good as I can get it. I might consider re-extending it at a later date.
Sorry if this isn't exactly what some of you wanted but I needed a refresher after being out for so long and as much as I love the SJSM soundtrack, I need something else to extend. Can't promise I'll keep to it though, most of my motivation to extend music comes from liking the track and wanting to extend it myself. Requests are more of a guide so I don't get stuck picking one I want.