Personally, I think the game that invokes nostalgia into me the most is Tetris. I used to play this game along with my brother when I was young. Other games that invoke the same level of nostalgia to me are of course Super Mario Bro on Family Computer, and Resident Evil on PlayStation 1.
The most nostalgic game for me is an old Donkey Kong game on the Game Boy Color.
My friend gave me her old gameboy and that was the only game I had. I loved it.
So that's definitely the game that takes me back the most. Maybe I'll look for it at a thrift store.
It May sound weird but it's a 2D flash game called Age of war 1 and 2, I really i don't why but whenever I want to think of a game that I enjoyed playing as a kid, it's the only thing that pops in my brain, but if we're talking real games, I thinks it's between PES 2003, and Mafia 1, the first one is linked to some of the best memories of my life, around my family and friends, and the second one is just a memory of SIA's album "1000 form of fears" and long stressless nights, good times.
For me it has to be serious sam, now resident evil and few of the arcade games. The reason being I spent a lot of time playing those arcade games and it was definitely fun for me to play those games and have fun around the same.
I'm all about that Theme Hospital life. It was my game of choice when I was younger and I loved sitting down after school, turning on the PC and loading it up and throwing some cheats into the mix. Hearing that "Hospital administrator is cheating" tannoy announcement still makes me giggle like a little boy. It's just good memories and good times. Certainly brings me back to the good days and I would still probably choose that game over some of the Triple AAA games we see coming out today.
Minecraft I think, eh? When I just started to play the game it was a so much different experience and the survival mode was a whole different thing than it's now. There wasn't that much stuff as nowadays (blocks, items, etc.) and personally I find it more interesting back then.