(For the purposes of search engine optimisation), I hear you ask:

What is "The Forever Winter"?

As theforeverwinter.wiki.gg/wiki/The_Forever_Winter_Wiki?oldid=9017#The_World explains:

The year is 20xx. Welcome to a future where massive armies are skinning the bones of our once beautiful earth. Ecological collapse compounded by runaway technological advancement brought us here: a world choked by 40 years of industrial-scale violence between three military superpowers, unmerciful mass killing by AI automata, human-machine hybrids, and the bleak truth of human nature. There are two sides to this war, and you’re not on either.

That's intriguing, but doesn't really explain anything. It's a co-operative extraction shooter.