The sheer isolation in a foreign world already holds a candle, but that combined with the most successful form of mass genre blending makes Metroid Prime 2 an experience I'll never be able to relive. Exploring a once-lived-in world with so much lore that's ripe for the picking (if you choose to pick) got me invested despite my usual distaste in lore deep diving. Metroid Prime Trilogy edition is my particular favorite.