Is the soundtrack bundled in with this?

I am not sure but as far as I can remember, apart from the intro theme, there was not much music throughout the game. If you buy the game for this, you might be disappointed.

I think the theme and sound effects are from Stéphane Picq, whom we owe unforgettable soundtracks such as Lost Eden's. So that's no wonder you like it.

I agree, if the soundtrack would be included that would redeem buying this game for most people.

You could try to reach the composer Stéphane Picq through this link and ask him for a possible, digital release:

https://stephanepicq.bandcamp.com/