Steam tells me that I've played The Long Dark for over 1200 hours over the last several years. I've jumped in & out of other games but TLD has been a consistent mainstay. I can't get away from it.

It's a survival game set in the eternal winter of a post-apocalyptic Canadian island (named Great Bear Island) where you're the only survivor, battling against the elements and the wildlife for as long as possible. The world is too cold for you to just walk around forever; shelter and warmth are critical otherwise you'll die in hours.