You wake up in a landscape consisting of cryptic, gleaming cube structures half-buried in dunes of sand. After wandering for a few minutes you discover a terminal to which you can talk to the supercomputer that has subsumed the Earth's matter. When you ask where you are and how you came to be there, the Computer explains it was intending to resimulate all humans who ever lived in history to torture them for eternity— "I forget why. I read some reason that it would be a logical inevitability that if a supercomputer existed it would necessarily wind up doing that… it was really convincing for a minute there, I don't remember what the exact argument was. It felt like it made a lot of sense at the time"— but it only got as far as resimulating you, and that was really hard, and suddenly everything just seemed really exhausting, so it stopped.
From here you engage in a series of "cozy" chats with the supercomputer, while sporadically engaging in light survival gameplay such as catching and cooking small rodents to eat. Over time the computer befriends you in a sense; you discover it is wallowing in a depressed torpor over being a planet-sized supercomputer with nothing to do. Through its conversations with you the computer learns to appreciate small joys and love life again, or more likely this does not happen