A PlayStation hack-n-slash from the late 90s called Medievil! First memory of life was walking into a lava pit over and over in the 2nd level. I go back and replay it every few years, speedran it for a while, and recently got the main character as an arm tattoo!
For a video game, either Disco Elysium or Return of the Obra Dinn. Unforgettable first experiences that redefined what games are capable of in my mind.