Played a demo of this years ago on a Swedish gaming magazine demo disc and then later got the full version as a gift from a longtime friend of mine as they didn't want it any longer, really enjoyed it even with how I wasn't any good at strategy games when I was younger.
The game made me feel unsettled too with the many disgusting organic growths you see while out on missions along with how things get more and more dire as the campaign progresses, especially with the soundtrack that sets the mood for how utterly apocalyptic this is and that you're fighting against horrors from beyond.
But since this is an older Windows game, getting it to run when using the disc is quite the challenge, so having it on GOG would be so much easier, especially if the soundtrack is added in as MP3 downloads in the extras.