A child doesn’t think about ownership, he picks up a controller and plays a game. And when the child has grown bored of the game, one day they just never touch it again like a discarded toy, moving on to something else.
It is adults, reminded of their own feeble mortality and impermanence in the world who try to grasp at things like permanent ownership, they long for something that can’t just be torn away from them on a whim. But in life, everything is ultimately torn away from you, there is nothing you can do about it.
Some try to disguise their hoarding as “preservation”. Nobody cares. Even if you had some carefully curated museum, these old games would just be exhibits people look at for a bit with passing curiosity. Nothing more. You didn’t even make these games, why do you care so much?
Focus on enjoying games now, in the time when they are relevant. No matter how hard you try, all those games will be lost in time, like tears in the rain.