Old school runescape without a doubt. All the different skills, and quests. That would just be an amazing experience I think. I would be rich!
Skyrim for sure. I'd do all the main quests and just become the king of Skyrim.
So I can play any video game in real life I would be The Witcher. Being able to slay monsters, travel the world, be a mutant, and possibly live forever(As long as you don't get killed by a monster(Sounds like a pretty good deal to me.
Very much like the idea of living in Skyrim having already spent so long in the game.
But I think, if I had to choose one game to live in, it would be Red Dead Redemption 2. I'd avoid the towns unless I had to and would live and hunt and fish in the wilderness away from civilisation. As a city boy, this appeals to me a great deal. To curl up under the stars on a warm night, and just watch the cosmos, or to sit by running water and fish in solitude. Watching a sunset every single night!
Don't get me wrong, I am sure there would issues. I wouldn't have a clue on how to skin and gut a fish if I actually caught one. And with small mammals caught, do you really skin them by inserting your fingers into their anus and then ripping the skin downwards? Probably not? And I won't be testing that…
But the peace of the wild sounds amazing…