Thanks for the recommendation, though I did actually try 6DoF. To cut a lot of opinions short, you're correct; it's a squad milsim game. It's intrinsically not designed for solo play, and it's a bit too hardcore for me and my friends even squadding. I'll have to keep an eye out for the indie games, hehe.
I'm very happy to hear you intend Arcticide to be out so soon! Good luck with it, I hope it's successful enough to help motivate you to make some of those ideas! And not too painful an experience, aheh. I've only dipped my toes in gamedev, but it was enough to witness how demoralizing the job can be.
Thanks!