I've never been more moved that I was during the final cutscene of the Mass Effect trilogy. The first time through, anyway. When the nameplate(s) went up on the wall of fallen crewmates, my soul overwhelmed my fucking body, emitted a bunch of involuntary sad noises, and then cried until credits rolled.

I was absolutely blown away by the bittersweet culmination of everything, and the musical score helped to rip the emotions right out of me.

As far as good feelings go, I get a lot of positive things out of Stardew Valley. It provides me with a steady drip of seratonin, and the music and visuals bring me back to the changing of many seasons throughout my childhood, growing up out in the country on land that used to be a functional apple orchard.