My old house from the early sixties has electric radiant heat in the ceilings as the sole heating source, a large sun room running the length of the house, and almost no insulation to speak of. I’m in Ohio.
Incidentally, when we moved in, the inside doors of the cabinetry were all wallpapered in newspaper clippings about the 1970s energy crisis. I can’t imagine why!
Warzone 2100. 3D RTS from the late 90s that was open-sourced after the studio went belly-up. Fantastic game, runs on even ancient hardware.
Edit to add: Forgot to mention it is still receiving updates!