It’s a reference to Pet Sematary, a book where a guy buries his cat in a pet cemetery in the woods behind his house and it comes back wrong. Among other things.
This painting/drawing is from artist Kichisuke Yoshimura, who said of it, “Their clothes ripped to shreds, their skin hanging down. On the riverbank I saw figures that seemed to be from another world. Ghost-like, their hair falling over their faces, their clothes ripped to shreds, their skin hanging. A cluster of these injured persons was moving wordlessly toward the outskirts.”
My personal favourites are moody third-person shooter El Paso, Elsewhere, in which you battle addiction and try to kill your vampire ex-girlfriend to stop the end of the world, and Space Warlord Organ Trading Simulator, a simulator game where you, well, trade organs on the intergalactic stock market. Shoutout also to the dog JPEGs manning the airport in An Airport for Aliens Currently Run by Dogs.
I’ve seen praise for these, I should finally play them!
If you do want to learn more, Innuendo Studios did a 6 part series called Why Are You So Angry? that’s pretty short (most episodes are ~10 minutes) but goes into the details
Edit: part 4 (An Autopsy of Gamergate, 18min) is probably the best summary, but the entire series is worth a watch if you have the time
Under* The Dome
But yes, one of my favorites!