When you boot up Eidolon, you are plopped directly into a vast polygonal forest, somewhere between Bellevue and Olympia, with zero explanation. There’s no stage-setting, no tutorial, nothing. It’s just you and the “post-human” wilderness expanding in all directions around you. Your only clear objective is to survive. You have to eat—by hunting, fishing, or gathering berries and mushrooms—and you have to keep warm. Beyond that, interpreting how and why all the people have disappeared is up to you.