This might sound a bit random, but Cyberpunk 2077 has this sort of warmup sound that plays through the game startup sequence that always gets me relaxed or psyched up to play. Another example is the title song in Trails from Zero. Calms me every time.
Whether it’s a sound effect, music, or a loading screen, is there a game that does this for you immediately when you open it?
Breath of the Wild. Every time Link steps into the light after opening the shrine, the camera pans over Hyrule, with that glorious music … I always get goosebumps and can’t wait to get the runes, catch a horse and start “exploring” again, even tho I pretty much know the entire map by heart already.